Hole sealing pipe for sealing drilling hole opening and dust removal equipment

The utility model discloses a hole sealing pipe for sealing a drilling hole opening and dust removal equipment, the hole sealing pipe is an interlayer structure with a closed air cavity formed by an inner-layer steel sleeve and an outer-layer expansion pipe, and an air inlet joint communicated with the closed air cavity is arranged at the tail part of the hole sealing pipe; the hole sealing pipe is arranged in a drilled hole, the air inlet connector is kept outside the hole opening of the drilled hole, the external air source is connected with the air inlet connector, the external air source introduces pressure air into the closed air cavity through the air inlet connector, and the outer-layer expansion pipe is expanded in the radial direction and attached to the hole wall to achieve hole sealing. The dust removal equipment comprises a dust collector, a pneumatic wet dust collector and a gas-water separator, and the hole sealing pipe is connected with a dust collection opening of the dust collector, so that d