Mining upper corner gas cleaning device

The utility model discloses a mining upper corner gas cleaning device, its characterized in that: the device connects the pump drainage mouth on gas pump drainage pipe including setting up the air inlet on gas pump drainage pipe, through the compressed air source of air inlet with gas pump drainage union coupling, wherein, inlet set connect at the pipeline of gas pump drainage pipe and insert the junction, compressed air source pipe connection to air inlet department passes through, and be provided with the pneumatic valve on compressed air source's the pipeline. Establishing the pipeline through other and to having air supply system, the mobile intraductal input compressed air of gas pump drainage of general mood, making the intraductal formation pressure differential of gas pump drainage, have the siphon effect, make the air current of pump drainage mouth be in negative pressure, air flow rate and flow increase severely, and the realization is taken the gas of dead angle department away under siphon action,