Screw conveyer for solidifying muck

The utility model relates to the technical field of shield construction, in particular to a spiral conveyor for solidifying muck. The device comprises a conveying pipe, a stirring main shaft, stirring blades, a slurry pipeline and a rotary spraying device, the stirring main shaft is arranged in the conveying pipe, the stirring blades are connected to the outer wall of the stirring main shaft in a spiral winding mode, the slurry pipeline is connected to the stirring main shaft in a winding mode and located between the stirring blades, and the rotary spraying device is communicated with the slurry pipeline and provided with rotary spraying holes. The stirring main shaft rotates relative to the conveying pipe, and slurry in the slurry pipeline is sprayed into the conveying pipe from the rotary spraying holes. According to the utility model, muck does not need to be concentrated in a mud pit for disposal, so that the loss of mud and the pollution to the environment are reduced; and when the muck is conveyed in th