Mining automatic drilling device

The utility model provides an automatic drilling device for mining. The drilling machine is used for drilling on a rock stratum, and comprises a crawler-type chassis; the mounting main body is rotationally mounted on the crawler-type chassis and can rotate around a first axis, and the first axis is the axis, in the vertical direction, of rotational connection of the mounting main body and the crawler-type chassis; the main drilling part is rotationally mounted on the mounting main body and can rotate around a second axis so as to adjust the pitching angle of the main drilling part, and the second axis is perpendicular to the first axis; the drill rod warehouse is fixedly mounted on the mounting main body, can rotate along with the mounting main body, and is used for storing drill rods for drilling operation; the mounting main body is sleeved with the mechanical arm in a sliding mode, the mechanical arm can move up and down on the mounting main body along the first axis, and the mechanical arm is used for movi