Municipal pipe jacking structure and construction method thereof

The invention belongs to the field of pipe jacking, and particularly relates to a municipal pipe jacking structure and a construction method thereof. The municipal pipe jacking structure comprises a barrel, tool aprons A, a tool bit, tool aprons B, a power device and the like, wherein the barrel is internally provided with a round fixing plate A, a shaft A is rotationally arranged in a shaft groove A at the center of the fixing plate A in a matched mode, and the shaft A is driven to rotate by the power device installed in the barrel; a drill bit drills a working surface of a hard rock stratumand conducts further broadening, knocking and breaking on drilled holes, thus, the tool bit on the tool aprons A and the tool aprons B is driven to conduct excavation pipe jacking construction on thehard rock stratum by the existing low-duty power device, the required standard for the duty of the power device is reduced, thus, the municipal pipe jacking structure can be driven by the low-duty power device to conduct effic