A direct reduction process pot furnace device compresses a furnace body, a furnace top charging spout, a reaction tank preheating segment, a reaction tank reducing segment, a fire flue, a water cooling blanking hopper, a discharge valve, a water groove, a discharge machine, a furnace-outlet material conveyer, an outer coal gas supply combustion system, a return coal gas combustion system, a thermal engineering monitoring system, air flue, an elevator, a material spreader, a cooling water pipeline, an electric appliance and a control system. The direct reduction process pot furnace device adopts the direct reduction technology, does not need to consume a great amount of coke, improves the content of nickel metal in iron alloy, has simple and reliable structure, simple and reliable technology, low scale starting point, little engineering investment and low production cost, and can be produced in large scale as building blocks. The direct reduction process pot furnace device is beneficial for continuous development and environment protection of iron and steel industry, finds an advanced and reliable technical route for utilizing red earth mines to produce ferronickel iron in places lack of coke resources, and is suitable for the economic technical condition of China and developing countries.