Coal mine tunnel excavating equipment

The invention discloses coal mine tunnel excavating equipment which comprises a shovel plate, a star wheel is arranged on the shovel plate, a main rake arm is fixedly connected to the star wheel, an adjusting arm is hinged to the main rake arm, and the adjusting arm is constructed to be capable of deflecting towards the rotating direction of the star wheel around the hinge point of the main rake arm and the adjusting arm. The adjusting arm prevents materials from moving along the inclined face of the main rake arm, and after deflection, the side faces of the main rake arm and the adjusting arm form a continuous guide inclined face. According to the coal mine tunnel excavating equipment, the adjusting arm is unfolded when approaching the conveying belt and folded after sliding through the conveying belt, so that the star wheel can be deflected to the edge of the shovel plate, the star wheel with the same diameter can be adaptive to the shovel plate with larger width and smaller longitudinal direction, and mean