Plasma torch harmless treatment melting furnace for oil-based drilling cuttings

The utility model provides a plasma torch harmless treatment melting furnace for oil-based drilling cuttings. The plasma torch harmless treatment melting furnace comprises a metal shell, a heat preservation layer, a working layer, a gas exhaust port, an oil-based drilling cutting feeding port, a plasma torch mounting port and a molten glass body overflow port. An installation opening is formed in the upper portion of the metal shell, a heat preservation layer and a working layer are sequentially wrapped in the installation opening, an annular heat preservation layer face and an annular working layer face are sequentially formed in the inner side of the installation opening, and a columnar melting cavity is formed in the inner side of the working layer. A gas exhaust port communicated with the melting cavity is formed in the middle of the annular working layer surface; the oil-based drilling cutting feed port, the plasma torch mounting port and the molten glass body overflow port are all formed in the metal sh