Tunnel shield conveying mechanism

The utility model relates to the technical field of shield tunneling machine equipment, in particular to a tunnel shield conveying mechanism which comprises a bottom plate, a spiral conveyor, a discharging pipe, a conveying assembly, a dustproof assembly, a first supporting frame and a second supporting frame. The spiral conveyor is obliquely arranged at the top ends of the first supporting frame and the second supporting frame, the discharging pipe is vertically arranged at the top end of the spiral conveyor, the conveying assembly is installed at the top of the bottom plate and located below the discharging pipe, and the dustproof assembly is arranged at the top of the bottom plate and located below the discharging pipe. The two conveying belts work at the same time to convey accumulated mudstone, the conveying capacity is greatly improved, and the situation that due to the fact that the mudstone is accumulated, the conveying belts break down, and work is stopped is avoided. 本实用新型涉及盾构机设备技术领域，具体是一种隧道盾构输送机构，包