Biological deodorization device for sewage treatment

The invention discloses a biological deodorization device for sewage treatment. The biological deodorization device comprises a water storage mechanism, a spraying mechanism, a biological deodorization mechanism and a control device, the biological deodorization mechanism is fixedly mounted at the upper end of the water storage mechanism through a mounting frame; water in the water storage mechanism is sprayed into the biological deodorization mechanism through the spraying mechanism; the control device is used for controlling the operation of the whole biological deodorization device for sewage treatment except the control device; water is uniformly sprayed into the deodorization box through the water storage mechanism and the spraying mechanism, a proper growth environment is provided for microorganisms in the biological deodorization filler, the use time is long, and the positions of the first deodorization plate group and the second deodorization plate group can be converted, so that the first deodorizati