Filtering device for municipal water supply and drainage

The utility model belongs to the technical field of municipal water supply and drainage, and particularly relates to a filtering device for municipal water supply and drainage, which comprises a well cover, a sewer well inner wall, a lifting assembly arranged below the well cover and capable of lifting the filtering device, and an overturning assembly arranged on the left side of the lifting assembly and capable of overturning a filtering plate, the lifting assembly comprises a positioning ring, a pull rod, a convex block, a reset ring, a filter plate and a rotating shaft, the positioning ring is connected with the outer surface of the pull rod, one side of the pull rod is rotationally connected with one end of the convex block, one end of the pull rod is fixedly connected with the reset ring, the inner surface of the reset ring is slidably connected with the outer surface of the filter plate, and the rotating shaft is fixedly connected with the outer surface of the filter plate. According to the device, a tr