The utility model discloses a vertical reduction melting furnace in the related technical field of casting melting equipment. Comprising a feeding machine, a reduction furnace, a breather, a flue gas temperature control pipe, a spiral gas pipe, a safety valve, a discharging valve, a rotary furnace, a rotary support, a rotary furnace base, two sets of deflection supporting frames, an adjusting oil cylinder, a rotary combustor, six temperature sensors, a driver, a waste gas collecting and treating pipeline and a gantry frame. The process of deoxidizing and reducing oxidized metal into metal raw materials is provided by utilizing the reducing atmosphere in the reduction melting furnace, so that the raw material components are improved, impurities in the raw materials are reduced, the efficiency of discharging high-quality metal liquid from the rotary furnace is improved, the amount of waste residues is reduced, and the service life of the rotary furnace is prolonged; meanwhile, the safety valve is provided with a temperature sensor, so that real-time monitoring of the temperature is facilitated, the situation that the temperature is too high, the state of raw materials is changed, the next procedure is affected is avoided, and maintenance of equipment is facilitated.