Movable dust removal and gas overrun prevention device for dry drilling construction

The invention discloses a movable dry-type drilling construction dust removal and gas overrun prevention device which comprises a dust removal mechanism, the dust removal mechanism comprises a primary dust removal assembly and a secondary dust removal assembly, the primary dust removal assembly communicates with the secondary dust removal assembly, a moving assembly is arranged at the bottom end of the dust removal mechanism, and the dust removal mechanism moves through the moving assembly; a power assembly is arranged at the upper end of the moving assembly, is connected with the moving assembly and the dust removal mechanism and provides a power source for the moving assembly and the dust removal mechanism. The device is compact in structure, high in flexibility and maneuverability and capable of moving along with the dry type drilling construction position, after coal dust-containing gas generated in drilling passes through the two-stage dust removal assembly, clean gas enters an extraction system under a