Belgium have dropped just two points in an impressive qualifying campaign so far and secured their place in next year's World Cup with a 2-1 away victory against Croatia yesterday.
Wales, meanwhile, are still in danger of finishing bottom of the group despite their 1-0 win over Macedonia last night, but Coleman believes that his players should not be intimidated at coming up against a side ranked sixth in the world.
"I hope the Belgium boys have been out and done some partying. I wouldn't mind picking up the tab for that to be honest with you," Coleman told PA.
"But I am not afraid of it, and we should not be afraid of it. We are up against one of the best teams in front of a full house and they have qualified.
"But let's see what we can do, because that is how you find out more about yourself. It will be very tough but I am looking forward to it. We have bodies missing but we need to go again on."