Auxiliary device for municipal pipe well construction

The utility model discloses a municipal pipe well construction auxiliary device which comprises a base, a stand column, a lifting mechanism, a telescopic mechanism, an arc-shaped ring and a V-shaped clamping plate, the stand column is fixedly installed on the base, the lifting mechanism is rotatably installed at the upper end of the stand column, the telescopic mechanism is installed on the lifting mechanism in a sliding mode, and the arc-shaped ring is installed on the V-shaped clamping plate. The lifting mechanism can drive the telescopic mechanism to move up and down, an arc-shaped ring is horizontally and fixedly installed on the telescopic mechanism, and a V-shaped clamping plate is fixedly installed at the other end of an opening of the arc-shaped ring. According to the municipal pipe well construction auxiliary device, through the two telescopic mechanisms and the two V-shaped extrusion plates which correspond to each other up and down, a pipeline needing to be welded is in a vertical state, the pipeli