To provide an exhaust apparatus for heating and drying of a bathroom, which is applicable to houses having no ventilation fan or having restrictions in formation of a through hole in an outer wall of a bathroom, without providing, in the outer wall of the bathroom, a new through hole for discharging the air in the bathroom to the outside.

A duct part 23 in communication with an interior duct part 22 provided in a bathroom 2 is arranged in a through hole 5 in a bathroom outer wall 4 used in installation of a burning machine 1 or a supply and discharge pipe thereof, and a tip end of the duct part 23 is exposed to the outside 3. Through the duct part 23 arranged in the through hole 5, the air in the bathroom 2 is exhausted to the outside 3.