The utility model relates to a dust removal device for a mine and particularly discloses a dust removal air curtain for a coal mine laneway. The dust removal air curtain for the coal mine laneway comprises a spray frame arranged on the side edge of the section of the coal mine laneway, and is characterized in that a glass fiber wire mesh for closing the section is mounted on the spray frame, spray heads which are uniformly distributed are mounted on the downwind side of the spray frame at the top end of the glass fiber wire mesh, the spray heads are connected with a spray flexible pipe at the side end, and a spray valve is mounted on the spray flexible pipe. The dust removal air curtain disclosed by the utility model adopts the air curtain for automatic arraying and is matched with the full-section spray fixed flushing, power supply electric equipment and a high-pressure air device are not required, automatic filtration and dust removal are realized, and the dust removal air curtain has the characteristics of simple structure, simplicity and convenience in mounting, light weight, simplicity in operation, practicality, easiness in maintenance, cheap price and the like.