An argon oxygen decarburization (AOD) furnace. In this system a water cooled or a normal top draft suction hood is provided at the top of furnace vessel to extract the fumes generated by the furnace at the time of melting, this hood further goes to the gas cooler or heat exchanger or to the spark arrestor to eliminate the excess heat or sparks from the fumes. Then go to the pulse jet bag filter or bag house or air pollution control system where SPM or dust or fumes get filtered and then clean air travels through the centrifugal fan and to atmosphere through stack or chimney. Outlet emission designed to meet applicable CPCB norms and project-specified limits depending on the pollution control norms at the location.