Fecha de publicación: 09/04/2021 Fuente: WIPO "circular economy" The utility model relates to the technical field of environmental protection, in particular to a dust removal device in a scrap steel cutting process, which is characterized in that a water inlet valve is opened to discharge water into a purification bin through a water inlet pipe, so that the water level in the purification bin is higher than the bottom end of a dust discharge pipe; then, the air filtered by the multiple sets of filter plates is discharged into the purification bin through the dust discharge pipe, secondary filtration is conducted on the air through water in the purification bin, the purified air is discharged through the exhaust hopper and the exhaust pipe, and therefore harm to the body health of workers caused by operation of the cutting device is reduced; the device comprises a first base, multiple sets of supports, a cutting device, a purification bin, an exhaust hopper, an exhaust pipe, a water inlet valve, a water inlet pipe, a filter box, multiple sets of filter plates, a dust exhaust pipe, a dust suction pipe, a dust suction opening, a fixing frame and a dust suction device.