Hydraulic outburst prevention drilling machine for coal seam gas drainage

The utility model discloses a hydraulic outburst prevention drilling machine used for coal seam gas drainage. The hydraulic outburst prevention drilling machine comprises a drilling machine frame; a drilling machine swivel gear assembly is arranged on the drilling machine frame; a guide rail is horizontally arranged on the drilling machine frame; the drilling machine swivel gear assembly is positioned on the guide rail, and is slidingly connected with the guide rail; the drilling machine swivel gear assembly is connected with a drilling machine feed and draw-off gear in a transmission way; and an elevation adjusting device is arranged at the lower part of the guide rail. The utility model has the advantages that the structure is simple; the drilling speed of the drilling holes used for draining the coal seam gas is effectively improved; the movement is convenient and flexible; the components of the drilling machine can be detachably connected; the erection and the maintenance are convenient; and the labor int