Novel gas diluting device and operation method thereof

The invention relates to the field of coal mine safety application, particularly discloses a novel gas dilution device and an operation method thereof, and solves the problem of gas accumulation on a coal mine working face. The device comprises an air multiplication part and a pneumatic fan part, the air multiplication part comprises an air inlet, an air multiplier and a connecting pipe, the lower end of the air inlet is tightly connected with a shell of the pneumatic fan part, a conical wind scooper, fan blades, a motor and a base are protected through the shell, holes are formed in the surface of the shell, a clamping groove is formed in the base, and the air multiplier is arranged in the clamping groove. A layer of filter screen convenient to replace can be placed, and a pneumatic two-linkage piece is fixed above the outer surface of the shell. Compressed air is used for providing power, fan blades on the pneumatic motor are driven to rotate, airflow is conveyed to the air multiplication part above, surrou