The invention discloses an integrated municipal sewage treatment device, which comprises a first box body and a second box body, the lower end of the first box body is connected with the top left end of the second box body, and the top sealing cover of the first box body is A sewage inlet pipe is installed on the top, a filter screen is installed inside the first box, a blocking ball is installed at the inner lower part of the first box, a telescopic cylinder is installed at the left end of the second box, and a telescopic cylinder is installed at the middle of the second box. Rotating shaft, the right end of the second box is also provided with a driving motor connected to the rotating shaft, the left end of the rotating shaft is equipped with a stirring blade, and the right side of the stirring blade is respectively installed with a left mesh baffle and a right mesh baffle on the rotating shaft , the left net baffle and the right net baffle are also connected and fixed by a plurality of connecting rods, and activated carbon particles are filled between the left net baffle and the right net baffle. The invention has novel structure, convenient control and use, good sewage purification treatment effect, and high popularization and application value when applied to municipal sewage treatment.