The invention discloses a suspension type rotating and hoisting device for gas welding gun heads. The suspension type rotating and hoisting device comprises a fixing cylinder, and a fixing pipe is arranged on the outer side wall of the fixing cylinder; a fixing shaft is arranged at the axial position of the fixing cylinder, and a fixing ring is arranged between the upper end of the fixing shaft and the fixing cylinder; a connecting shaft is arranged at the lower end of the fixing shaft, a connecting plate is arranged at the lower end of the connecting shaft and is provided with a fixing plate, the lower end of the connecting shaft is connected to the fixing plate, the fixing plate is provided with reinforcing blocks, a butt joint cylinder is installed on the outer periphery surface of the lower end of the connecting shaft in a sleeving mode, the reinforcing blocks are connected to the butt joint cylinder, and the butt joint cylinder is arranged on the fixing plate; the connecting shaft is provided with a plane bearing in a sleeving mode, and the plane bearing is arranged at the end of the butt joint cylinder; the connecting plate is provided with a plurality of installation rods, fixing pins are arranged between one ends of the installation rods and the connecting plate, and bent parts are arranged at the other ends of the installation rods. According to the device, the gas welding gun heads can be installed at the ends of the installation rods so as to be conveniently and firmly installed, and gas welding is convenient.