The invention discloses a mineral powder direct reduction device. The mineral powder direct reduction device comprises a reactor body, a heating system and air distribution pipes. The reactor body comprises a feeding area, a reduction area and a cooling area which communicate with one another. The reduction area is located under the feeding area. The cooling area is arranged under the reduction area. A feeding inlet is formed in the top of the feeding area. A discharging outlet is formed in the bottom of the cooling area. A reduction tail gas outlet is formed in the lower portion of the feeding area. Reduction gas inlets are formed above the discharging outlet. The feeding inlet communicates with the feeding area. The reduction tail gas outlet, the reduction gas inlets and the discharging outlet all communicate with the reduction area. The heating system comprises heat storage type radiant pipes arranged in the reduction area. The air distribution pipes are arranged in the reduction area and connected with the reduction gas inlet. A plurality of spray nozzles are arranged on the air distribution pipes. According to the mineral powder direct reduction device, reduction gas entering the reactor body is relatively even, the balance degree of material reduction is improved, the reduction rate of mineral powder is increased, and energy consumption is reduced.