Vacuum induction melting furnace for producing high-purity metal and melting method

The invention discloses a vacuum induction smelting furnace for producing high-purity metal and a smelting method, and relates to the technical field of metal smelting, the vacuum induction smelting furnace comprises an alternate smelting mechanism, an automatic coil conversion mechanism, an intermittent discharging mechanism and an auxiliary mechanism; the alternate smelting mechanism comprises a side support, a supporting frame, a smelting furnace, a drainage opening, a flow guide groove and a center support. The number of the supporting frames is two, the two supporting frames are symmetrical, the outer sides of the supporting frames are rotationally installed on short shafts of the side supports, smelting furnaces are fixedly installed in the supporting frames, drainage openings are fixedly welded to the smelting furnaces, the flow guide grooves are fixedly installed on the two sides of the center support, and a part of each drainage opening extends into the corresponding flow guide groove. When the devic