Municipal drainage device

The utility model relates to the technical field of municipal water supply and drainage, and discloses a municipal drainage device which comprises an annular top plate, a drainage cylinder, a filter screen, a roller carrier, a waterwheel and a water guide piece. The annular top plate is connected to one end of the drainage cylinder, the other end of the drainage cylinder is provided with the roller carrier, and the roller carrier is connected with the other end of the drainage cylinder; the water wheel is installed on the roller carrier and rotationally connected with the roller carrier, the filter screen is installed on the circular top plate, and the water guide piece is installed on the upper portion of the inner side of the drainage barrel and used for dividing water flow. The circular top plate, the drainage barrel, the filter screen, the roller carrier, the waterwheel and the water guide piece are adopted, so that blockage of a drainage channel can be effectively relieved; the filter screen is used for