Anti-expansion structure of titanium slag furnace

The utility model relates to the technical field of titanium slag furnaces. The anti-expansion structure of the titanium slag furnace comprises a furnace body, the titanium slag furnace comprises a titanium slag furnace body and a furnace bottom, a furnace wall heat insulation layer is arranged on the inner side wall of the titanium slag furnace body; a refractory knotting layer is arranged on theouter wall of the furnace wall heat insulation layer; an elastic breathable layer is arranged on the outer wall of the fire-resistant knotting layer; reinforcing ribs are arranged on the outer wall of the titanium slag furnace body; a furnace bottom protective layer, a magnesite brick layer, a magnesia layer, a furnace bottom insulating layer and a breathable buffer layer are sequentially arranged on the inner wall of the furnace bottom from inside to outside; a pressure relief block is arranged at the top of the titanium slag furnace body; the top of the pressure relief block communicates with a protection column. T