Apparatus and method for treating municipal overflow sewage

The invention relates to an apparatus for treating municipal overflow sewage. The apparatus comprises a shell, the inner upper part of the shell is provided with a material inlet, a filtering device is arranged below the material inlet, the filtering device comprises a hollow-out conveyor belt, the conveyor belt moves relative to the shell, a plurality of limiting hooks perpendicular to the conveyor belt are slidably inserted into the conveyor belt, and a control device for controlling the sliding of the limiting hooks is arranged below the conveyor belt; the side surface of the shell is provided with a material outlet, and a material discharge plate extending to a position below the conveyor belt is mounted at the material outlet; and a water storage barrel is arranged below the filteringdevice, a centrifuging device is mounted in the water storage barrel, and the water storage barrel is communicated with a mud outlet pipe and a water outlet pipe. The filtering device is arranged topre-separate solid wastes,