The invention discloses an industrial furnace for non-ferrous metal smelting. The industrial furnace comprises a hearth (2), a feed tube, a combustor (5) and a heat exchanger (9), wherein a low-temperature air pipeline (8) is connected between the heat exchanger (9) and a fan (7), a high-temperature air pipeline (6) is connected between the heat exchanger (9) and the combustor (5), a hearth furnace gas outlet (24) is formed on the hearth (2), the feed tube serves as one part of a heat exchange system, and a furnace gas pipeline connects the hearth furnace gas outlet (24), the heat exchanger (9) and the feed tube into a whole. According to the invention, the feed tube can utilize excess heat of waste furnace gas to preheat furnace materials (14) to be melted, and loading process is performed in a closed space, thereby preventing a great deal of heat in the furnace from being lost and greatly reducing the temperature of the waste furnace gas discharged into the atmosphere, therefore, the preheated furnace materials (14) can be quickly melted in the hearth (2) so as to achieve the aims of high efficiency, low energy consumption and low aluminum loss.