The present invention provides a city rainwater seepage drainage installation. It includes main pipe culvert, branch pipe, joint pipe and manhole, one end of said joint pipe is connected with water inlet, its another end is communicated with main pipe culvert by means of manhole, one end of the branch pipe is communication with said manhole, and another end of the branch pipe is communicated with main pipe culvert by means of manhole, under the manhole a seepage well is added, and the shaft body of said seepage well is formed from plastic disordered network frame. |