Ventilation device convenient to clean and used for quarry

The utility model belongs to the technical field of quarries, and particularly relates to a quarry ventilation device convenient to clean, which comprises a working box, a motor is arranged on one side of the working box, a rotating shaft is arranged at the output end of the motor, fan blades are arranged on the surface of the rotating shaft, a connecting frame is arranged at one end of the rotating shaft, and a ventilation hole is formed in the connecting frame. A water tank is arranged at the top of the working box, a water pipe is arranged on one side of the water tank, a water pump is arranged at one end of the water pipe, and a spray head is arranged at the output end of the water pump. A motor works to enable a rotating shaft to drive fan blades to rotate to ventilate a quarry, after the device finishes working, a water pump works to pump out water in a water tank, and the water passes through a water pipe and is sprayed on the surfaces of the fan blades through a spray head to comprehensively clean the