Abstract: The present disclosure provides a circular electric furnace, and electrode arrangement structure thereof. The electrode arrangement structure of the circular electric furnace comprises: 2n electrodes (11-16) and n single-phase transformers (40) each including two output ends, wherein the 2n electrodes (11-16) are respectively connected to the output ends of the n single-phase transformers (40), and n is an integer?2. The electrode arrangement structure of the circular electric furnace of the present disclosure comprises 2n electrodes (11-16) and n single-phase transformers, with n?2. That is, the structure comprises at least 4 electrodes and 2 single-phase transformers (40), and one single-phase transformer (40) is connected to two electrodes.

Abstract: The present disclosure provides a metallurgical electric furnace, and a smelting method for the metallurgical electric furnace. The metallurgical electric furnace includes a furnace body, an oxygen lance and a coal lance, wherein the furnace body is provided with a furnace chamber; the oxygen lance is located on a side wall of the furnace chamber and is used for blowing oxygen into the slag promoting the smelting process, and the outlet of the oxygen lance is higher than the slag; and the coal lance is located on the side wall of the furnace chamber beside the oxygen lance and is used for spraying coal into the slag, and the outlet of the coal lance is higher than the slag.