Municipal road drainage system

The utility model discloses a municipal road drainage system, and relates to the technical field of municipal construction, the municipal road drainage system comprises a bottom plate, the center of the top of the bottom plate is fixedly provided with a drainage pipe, the top of the drainage pipe is connected with a flow guide pipe, the top of the flow guide pipe is provided with a filter tank, both sides of an inner cavity of the filter tank are provided with fixing plates, and the tops of the two fixing plates are provided with coarse filter screens; a fine filter screen is arranged between the two fixing plates, a through hole is formed in the bottom of the filter tank, and a limiting plate and a floating plate are installed in an inner cavity of the flow guide pipe. Through cooperative arrangement of the filter tank, the coarse filter screen and the fine filter screen, rainwater can be filtered, when the rainwater passes through the coarse filter screen, large impurities in the rainwater are preliminarily