Urban drainage filtering and impurity removing structure

The invention discloses an urban drainage filtering and impurity removing structure, and relates to the technical field of drainage structures, the urban drainage filtering and impurity removing structure comprises a well body, a water inlet is formed in the well body, an outer layer filter screen is arranged on the upper portion of the water inlet, a well cover plate is arranged at the lower end of the outer layer filter screen, and a flow limiting assembly is arranged at the lower end of the well cover plate; the flow limiting assembly is arranged in the middle of the well body, and a sand filter screen is arranged at the lower end of the flow limiting assembly. According to the invention, a first garbage interception is formed by the outer filter screen, a second interception is formed by the flow limiting assembly, and a third silt interception is formed by the sand filter screen, so that rainwater is subjected to interception and slag interception, the drainage flow is controlled, and the effect of impro