Furnace top slag spraying safety drainage device of large-scale titanium slag smelting electric arc furnace

The utility model discloses a furnace top slag spraying safety drainage device of a large titanium slag smelting electric arc furnace, belongs to the technical field of chemical equipment, and aims to solve the problem that in the prior art, when serious foaming slag occurs in the electric arc furnace to cause slag spraying, high-temperature gas or slag liquid overflows to damage furnace top equipment, a water pipe and a cable. The electric arc furnace top is provided with a furnace top safety valve, an electrode and an electrode clamping device arranged on the electrode in a sleeving mode, the titanium slag electric arc furnace top is arranged to be in a slope shape so that overflowing slag liquid can flow downwards conveniently, the titanium slag electric arc furnace top is covered with a cover plate, a cofferdam is arranged on the outer side of the electric arc furnace top, overflow holes are formed in the cofferdam, and the overflow holes are communicated with the cover plate. An accident stacking area is