Sewage disposal device for small-sized river gate engineering

The utility model provides a sewage disposal device for river channel small sluice engineering, and relates to the technical field of sluices, the sewage disposal device comprises a sluice frame, a protection device and a fixing device, the inner wall of the sluice frame is connected with a sluice plate in a sliding mode, the protection device is installed on the surface of one side of the sluice frame through the fixing device, the protection device comprises a protection net, and the protection net is arranged on the inner wall of the sluice frame. The protective net is mounted on the surface of one side of the gate frame through a fixing device, an included angle is formed between the protective net and the gate frame, and a servo motor is fixedly connected to the surface of one side of the protective net. The problems that in the prior art, the situation that part of sundries are clamped in a gate frame occurs, along with the more and more clamped sundries, a gate plate of the water gate is difficult to c