The present invention relates to a burner of an industrial electric furnace.;The present invention described above provides a configuration in which the fastening means 82 constituting the coupling portion 80 of the housing 50 is hingeably rotatably mounted to the flange portion 81 on one side.;In addition, the present invention is configured so that the expansion portion 91 is formed in a predetermined section of the front side of each nozzle 90 coupled to the spout pipe 60 so that the ejection area of the tubular body 61, 62 therein is narrowed. To provide.;Therefore, the present invention can improve the work efficiency by simply disassembling only the fastening means of one side to perform the disassembly of the housing conveniently, and after the dismantling of the housing, the fastening means is maintained in the state coupled to the housing, and thus the loss of parts The effect of economic loss caused by this will be solved.;In addition, the improved structure of the ejection portion is provided with a flame of stronger thermal power to obtain the effect of improving the productivity of the product.
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