Fume disposal process and fume disposal system

For collecting fine particles from fume generated in the process of thermal cutting or welding of a metal material and solidifying them, a fume disposal system comprises a fume introducing chamber which is connected to a cutting machine body through a suction duct and into which suctioned fume is introduced; a bug filter for separating and collecting fine particles from the fume introduced into the fume introducing chamber ; a hopper for storing the separated, collected fine particles; a screw conveyor for conveying the fine particles stored in the hopper to a molding chamber; and a pressurizing device for pressurizing the fine particles fed into the molding chamber to reduce the volume thereof.