Spraying device for circular concrete cover plate in earth and rockfill dam high-plasticity clay building

The utility model discloses a spraying device for a circular concrete cover plate in an earth and rockfill dam high-plasticity clay building, which comprises a slurry storage barrel, a support, an outlet pipe and a spray pipe, an upper cover capable of sealing the slurry storage barrel is arranged at the upper end of the slurry storage barrel, an air compressor communicated with the interior of the slurry storage barrel is arranged on the upper cover, and an outlet hole is arranged on the bottom surface of the slurry storage barrel; the outlet pipe is vertically arranged in the outlet hole, the outlet pipe and the outlet hole are rotatably and hermetically connected through a bearing assembly, the first end of the spray pipe is vertically and hermetically communicated with the lower end of the outlet pipe, the spray pipe horizontally rotates by taking the outlet pipe as a rotation axis, and a plurality of nozzles with downward spraying directions are arranged on the spray pipe; the spraying pipe capable of ro