Center swivel joint and shield tunneling machine with same

The utility model relates to a center rotary joint and a shield tunneling machine with the same. The center rotary joint comprises a rotor assembly and a stator assembly. The rotor assembly comprises a rotary body, the rotary body comprises a plurality of barrels, the barrels are arranged in a layer-by-layer nesting mode in the radial direction of the barrels, fluid channels are defined between every two adjacent barrels, liquid inlets and liquid outlets are formed in the barrels, the liquid inlets and the liquid outlets are arranged in the axial directions of the barrels at intervals, the liquid inlets and the liquid outlets communicate with the corresponding fluid channels, and the liquid inlets and the liquid outlets are communicated with the corresponding fluid channels. The stator assembly comprises a plurality of stators, the stators are arranged on the outer walls of the barrels in a sleeving mode correspondingly, the stators are used for rotating and supporting the barrels, the stators are each provid