PROBLEM TO BE SOLVED: To provide a deodorizing device capable of passing air in water even without a complicated mechanism.SOLUTION: A deodorizing device 1 includes a body having a suction port 2 and a blowout port 3. The body includes: an air passage 4 for communicating the suction port 2 and the blowout port 3 blower means 6 for blowing air to the air passage 4 disc-shaped rotatable deodorization filters 5 provided so as to shield the air passage 4 a drive part 19 for rotating the deodorization filters 5 and a water tank 7 capable of immersing a lower part of the deodorization filter 5 which is rotated by the drive part 19 in the stored water. The deodorization filters 5 have a filter material in which a water film is formed in a portion immersed in the water and arranged doubly at an interval. The drive part 19 rotates one of the deodorization filters 5 clockwise and the other counter-clockwise. Thus, the deodorizing device can be acquired which can pass air in the water even without a complicated mechanism.SELECTED DRAWING: Figure 1