Coal mine gas explosion buffering device and mounting method thereof

The invention discloses a coal mine gas explosion buffering device and an installation method thereof, and belongs to the field of coal mine gas explosion prevention. The coal mine gas explosion buffering device comprises a first-stage buffering assembly, and a protection plate is installed on one side of the first-stage buffering assembly through a second-stage buffering assembly; the first-stage buffering assembly is used for being matched with the second-stage buffering assembly to achieve double explosion buffering on the protection plate, a positioning mechanism is arranged at the bottom of one side wall of the protection plate, inclined supporting assemblies are arranged on the two sides of the middle of one side wall of the protection plate, and the positioning mechanism is used for being matched with the inclined supporting assemblies to achieve stable supporting on the protection plate. And the first-stage buffering assembly comprises an arc-shaped steel plate, a plurality of sets of supporting block