Rapid drainage device for dredging residual water

The utility model relates to the technical field of sewage treatment devices, and particularly discloses a rapid drainage device for dredging residual water, which comprises a clear water area, an inclined tube precipitation separation area and a dredging residual water area, the dredging residual water area is provided with a baffle, and the baffle is obliquely fixed at the bottom of the dredging residual water area. An inclined tube precipitation separation area is arranged on the dredging residual water area, a connecting frame is arranged in the inclined tube precipitation separation area, honeycomb-shaped inclined tube filler is fixed in the connecting frame, a fixing spring is arranged at the bottom of the connecting frame, and the connecting frame is connected with the bottom of the dredging residual water area through the fixing spring; a clear water area is arranged above the inclined tube precipitation separation area and is provided with a floating barrel, and the floating barrel is fixedly connect