Mine roadway construction turning direction giving instrument device

The utility model discloses a mine roadway construction turning direction giving instrument device which comprises a main plate, the two sides of the main plate are connected with supporting plates through installation structures, the surfaces of the supporting plates are fixedly provided with scale plates, the side walls of the supporting plates are provided with baffle structures, the surface of the main plate is fixedly provided with a gradienter, and the gradienter is fixedly provided with a positioning plate. An infrared ray is rotationally assembled in the center of the main plate, supporting leg structures are assembled at the lower end of the main plate and the lower end of the supporting plate, and according to the requirements of different parameters and different driving turning radiuses of different shoveling and transporting equipment under a mine well, according to different rock drilling parameters, the direction change of the turning radius of the single-time tunneling footage in the pre-tunne