In-situ replacement device for expressway pipeline

The invention belongs to the field of municipal road pipelines, and particularly relates to an expressway pipeline in-situ replacement device which comprises a track driving vehicle, a hydraulic moving table is carried above the track driving vehicle, the driving end of the hydraulic moving table is connected with a traction seat, one end of the traction seat is connected with a plurality of splicing pipes, and the splicing pipes are connected with a plurality of connecting rods. A plurality of splicing pipes are connected end to end, a connecting assembly is arranged at the front end of the crawler driving vehicle, the traction base is driven by the hydraulic moving table to pull back, one splicing pipe is detached every time the traction base is pulled back, under extrusion of a new replacement pipe, an old pipeline can be jacked outwards from the original place, the jacked old pipeline is split from the middle, and the replacement efficiency is improved. According to the in-situ replacement device, the rep