Visual closed type spiral screen coal screening machine

The utility model provides a visual closed type spiral coal screening machine, and relates to the technical field of coal mine screening. Comprising a spiral screening machine mounting bottom plate, a rotating main shaft is arranged on the spiral screening machine mounting bottom plate, a servo motor is arranged on the rotating main shaft, a spiral screening channel is formed in the outer surface of the rotating main shaft, and a plurality of spiral screening machine frames are arranged on the spiral screening machine mounting bottom plate; a plurality of acrylic baffles are arranged on the spiral screening machine frame, a plurality of discharging holes are formed in the spiral screening machine installation bottom plate, a stabilizing block is arranged at the upper end of the spiral screening machine frame, and a plurality of feeding ports are formed in the stabilizing block. Therefore, the working state in the coal separator becomes invisible, and the understanding of the working personnel on the internal