Photo-catalytic air draft deodorization device

The utility model discloses a photo-catalysis downdraught deodorizing device, comprising a sterilizing and deodorizing chamber, a downdraught-machine chamber and a waste-passage chamber. The lateral surface of the waste-passage chamber is opened with a passage leading to the downdraught-machine chamber, the passage is communicated with the sterilizing and deodorizing chamber via an air inlet passage of a downdraught-machine, the inner portion of the sterilizing and deodorizing is provided with an ultraviolet lamp, the inner wall of the sterilizing and deodorizing chamber is provided with a layer of photo-catalysis net, a plurality of air discharging holes are opened on a metal casing of the outer wall of the sterilizing and deodorizing chamber, and a metal gravel-net is arranged between the photo-catalysis net and the metal casing. The utility model utilizes the photo-catalysis technology to realize de-flavoring and deodorization treatment, and the utility model has the advantages of small volume, flexible mo