Converter bottom blowing special-shaped refractory brick

The utility model relates to a converter bottom blowing special-shaped refractory brick, and belongs to the technical field of converter steelmaking in the metallurgical industry. According to the technical scheme, the upper protective brick comprises an upper protective brick head (1), an upper protective brick bottom (2), a mortise and tenon structure (4) and an argon pipe (5), a through hole is formed in the upper protective brick bottom (2), the argon pipe (5) is arranged in the through hole, a blind hole (8) corresponding to the argon pipe (5) is formed in the upper protective brick head (1), and the upper protective brick head (1) and the upper protective brick bottom (2) are rotationally connected together through the mortise and tenon structure (4). And fillers are arranged between the upper protective brick head part (1) and the upper protective brick bottom part (2) and between the argon pipe (5) and the through hole of the upper protective brick bottom part (2). The utility model has the beneficial