Metallurgical furnace

The present invention relates to metallurgical processes and equipment and more particularly to a metallurgical furnace capable of operating with a wide range of raw materials and fuels, including those with high levels of impurities. To that end, the metallurgical furnace of the present invention comprises (i) at least one upper vessel (1), (ii) at least one lower vessel (2), (iii) at least one fuel supply device positioned substantially between the at least one upper vessel (1) and the at least one lower vessel (2), (iv) at least one row of clack valves (3, 4) positioned in at least one of the at least one upper vessel (1) and at least one lower vessel (2), at least one row of clack valves (3, 4) placing the interior of the furnace in fluid communication with the external environment and (v) at least one burner (10) positioned in at least one of the at least one upper vessel (1) and at least one lower vessel (2). The use of the at least one burner (10) in conjunction with the at least one row of clack valves (3, 4) gives rise to the release of very intense heat as a function of the exothermic reactions that take place by means of this combination.