Punching and slagging-off device for hydraulic tunnel engineering

The utility model relates to the field of hydraulic tunnel engineering, in particular to a punching and slagging-off device for hydraulic tunnel engineering, which comprises an engineering vehicle with a mechanical arm, the mechanical arm is connected with a punching device, a material receiving device is arranged below the punching device and comprises a collecting box connected with the mechanical arm, the end part of the collecting box is an extended straight plate, and the straight plate is connected with the mechanical arm. A plurality of groups of material receiving pieces are arranged on the end portion of the collecting box in an elastic sliding mode to form a material receiving face, the arranged telescopic material receiving pieces can be attached to a working face in a matched mode, the edge of the material receiving face can be attached to the working face in a matched mode, and therefore the material receiving face can be attached to the working face in a matched mode. And a large number of crush