Environment-friendly and efficient sewage treatment device for municipal engineering

The utility model relates to an environment-friendly efficient sewage treatment device for municipal engineering, which comprises a tank body, the outer side wall of the tank body is communicated with a chemical inlet pipe and a water inlet pipe, the bottom of the tank body is communicated with a water outlet pipe, and one end of the tank body is rotatably provided with an end cover; a sliding rail is fixedly arranged on the inner side wall of the tank body and located at the top of the tank body, a sliding block is arranged on the sliding rail in a sliding mode, a set of scraping plates are symmetrically arranged on the outer side wall of the sliding block, the length direction of the scraping plates is arranged in the circumferential direction of the tank body, and a driving assembly for driving the sliding block to slide on the sliding rail is arranged in the tank body. The tank has the advantages that dirt and impurities adhering to the inner wall of the tank body can be conveniently removed, and the clea