Sewage pump with sludge crushing device

The utility model relates to the technical field of sewage pumps, in particular to a sewage pump with a sludge crushing device. The bottom of the engine is provided with an impeller working chamber, the bottom of the impeller working chamber is provided with a first base, the rear side of the impeller working chamber is provided with a water outlet pipe, the front side of the impeller working chamber is provided with a first water inlet pipe, the front end of the first water inlet pipe is provided with a crushing chamber, and the crushing chamber is communicated with the first water inlet pipe; a crusher is arranged in the crushing chamber, and a first sealing flange is arranged at the front end of the crushing chamber. The impeller in the impeller working chamber is driven by the rotating end of the engine to quickly rotate, water can be continuously pumped up through the impeller working chamber, the crushing chamber is arranged on the front side of the impeller working chamber, and the crusher installed in