To evenly dry a bathroom and to shorten the drying time by mounting an air blower and a heating device in a ventilating path which connects an inlet port facing to the bathroom and a blow-off port, and mounting a mechanism for varying the air speed and air direction of the hot air from the blow-off port by throttling an air duct area with a plurality of patterns, in the ventilating path.

A drying device body 1 mounted on a bathroom ceiling wall 2 takes the air in a bathroom 3 from an inlet port 4 by the operation of an integrated air blower 5, and sends the heated air from a blow-off port 10 toward a matter to be dried. A part of the taken air of high water content is exhausted from an exit 8 through a ventilating path 6, and the remains air is heated by a heat exchanger 9. On this occasion, the exhausted air quantity is adjusted by a damper 7, the air speed and air direction from the blow-off port 10 is changed by a ventilating path area adjusting part 11 with a plurality of patterns, and the hot air is evenly sent toward a specific area for efficiently drying the matter to be dried.