With Hazard and Kevin De Bruyne wreaking havoc in midfield and the firepower of Lukaku and Michy Batshuayi up front, Belgian fans have every right to expect big things from the Red Devils in this tournament. Midfielder Wahbi Khazri clipped in a free-kick while Dylan Bronn nodded it into the bottom right.
The result gives Belgium a ideal two wins from their two Group G games, scoring nine goals in the process and firing an ominous warning to main rivals England ahead of their meeting in Kaliningrad on Thursday.
Belgium leads Tunisia 2-1 after goals in quick succession at opposite ends of the field.
Lukaku's double was the first time that a player has scored two or more goals in consecutive World Cup games since Argentine great Diego Maradona achieved the feat in 1986.
"If we had got a draw it would have been an excellent result for us (against England), but hopefully this will lead to higher levels of concentration in the coming games", said Maaloul.
Belgium are not yet through to the round of 16, but a win for England over Panama tomorrow will see them progress.
He had a chip blocked, hit the bar from a foot out, and had another shot from the six-yard box saved by Tunisian keeper Farouk Ben Mustapha.
The Belgians completely overran their opponents from the start, feeding Romelu Lukaku up front.
The action will continue with Group F on Saturday, as all four teams will be in action.
The Carthage Eagles were resisting better after half-an-hour, compared to the porous defending of the first quarter of the game, although they struggled to carve out any real chances.
Belgium moved to the brink of the World Cup knockout rounds on Saturday.
There will be tougher tests for Belgium, starting with England on Thursday.
Belgium defender Thomas Meunier had spoken ahead of the match that his side should go for the throat against Tunisia and that is exactly what they did.
Tunisia, also without a point after two matches, having extended their 40-year World Cup winless run to 13 games, are also still in with a theoretical chance of making it on through three points.
'He had a fantastic game and scored two goals, that is what you want'.