Connecting piece for air-leg rock drill

The utility model relates to a connecting piece for an air-leg rock drill, the connecting piece is used for connecting an anchor rod with the air-leg rock drill, the air-leg rock drill is provided with a first accommodating hole for accommodating the end part of a drill rod and a drill clamp for limiting the drill rod, and the connecting piece for the air-leg rock drill comprises a first rod body and a second rod body. Wherein the first rod body is partially contained in the first containing hole so as to be connected to the air leg type rock drill, the first rod body is provided with a limiting part which is used for being matched with a drill rod clamp so as to be axially limited, and the second rod body is connected with the anchor rod and can be axially and telescopically connected with the first rod body. According to the technical scheme, in the operation process, a roof bolter is not needed any more, the machine does not need to be replaced frequently, the labor intensity of operators is reduced, the s