Fully protective pouring device of tundish

The utility model discloses a fully protective pouring device of a tundish. According to the fully protective pouring device of the tundish, round ring pipes are embedded in the inner side of the bottom edge of a pouring hole, the inner side of the bottom edge of a baking hole and the inner side of the bottom edge of a rod plugging hole respectively, each round ring pipe is connected with an argon blowing pipe to enable argon to be blown in, incoming air from the pouring hole, the baking hole and the rod plugging hole can be effectively reduced, air inside the tundish is rapidly replaced, secondary oxidation of molten steel is prevented, cleanliness of the molten steel is improved, and finally the quality of a casting blank is improved.