Municipal sponge city seepage and drainage structure

The utility model discloses a municipal sponge city seepage and drainage structure, which relates to the technical field of municipal sponge cities and comprises a communication box, a water outlet pipe, a drainage pipe and a cover plate, and the bottom of the cover plate is in contact with the inside of the communication box. Through mutual cooperation of the floating plate and the floating rod, when water entering the communicating box is much and cannot be discharged by the water outlet pipe at the first time, due to the fact that the density of the floating plate is smaller than that of the water, the floating plate can float on the surface of the water, at the moment, the floating plate can move towards the top under the action of the water, and the floating plate moves towards the top to drive the floating rod to move towards the top; a floating rod moves towards the top to make contact with the bottom of a second filter plate, at the moment, due to the fact that a communicating box contains much rainwa