Multi-section split swivel joint for slurry shield

The invention provides a multi-section split type swivel joint for a slurry shield. The multi-section split type swivel joint comprises a shell and a sleeve, the shell is fixedly connected with the sleeve through a connecting frame, a rotary shaft is rotationally arranged in the shell in the rotating direction, a connecting shaft is rotationally arranged at the left part of the sleeve, and a firstmedium channel is arranged at the right part of the sleeve in the axial direction; and a second medium channel is arranged in the rotary shaft in the axial direction, and a third medium channel is arranged in the connecting shaft in the axial direction. Through the multi-section structure design, the machining difficulty and the manufacturing cost are greatly reduced; and the first medium channel, the second medium channel and the third medium channel are communicated to form a large-drift-diameter medium channel used for conveying slurry, and meanwhile, the medium channels are formed in theside walls of the rotary s