Transverse-tubule heating mantle of combined furnace for producing sponge titanium

A transverse-tubule heating mantle of a combined furnace for producing sponge titanium comprises electrical heating elements, four round bars, insulating tubes, insulating pads, filling and a shell; wherein, the four round bars are welded on the shell; the round bar are respectively provided with an electrical heating element, and are insulated from each other by the insulating tube and the insulating pad; and the filling is arranged among the shell, the round bars and the electrical heating elements. The total weight of the transverse-tubule heating mantle is reduced, so that the transverse-tubule heating mantle can be easily mounted; the work for replacing the damaged bricks can be dispensed with; and the mounting of the electrical heating elements is more convenient and quicker than before.