The invention relates to a dredging device, in particular to a rapid dredging device for a municipal sewer. The invention aims at providing the rapid dredging device for the municipal sewer, which canimprove the work efficacy, and can effectively dredge impurities in the sewer. In order to solve the technical problems, the following technical scheme is adopted: the rapid dredging device for the municipal sewer comprises a bottom plate and the like, wherein wheels are mounted on the bottom of the bottom plate in a left-right symmetric manner, a first through hole is formed in the middle of thebottom plate, a mounting rack is arranged on the right side on the bottom plate, a lifting device is arranged on the left side of the mounting rack, a dredging device body is arranged on the left side of the lifting device, a push rod is arranged on the right side on the bottom plate, and the push rod is positioned on the right side of the mounting rack. With the device, the effects that the workefficiency can be improved and the impurities in the sewer can be effectively dredged are achieved. The lifting device is controlled to drive the dredging device to move vertically to and fro, then the sewer is rapidly dredged, and finally, the work efficiency is improved.