Special-shaped fused alumina zirconia firebrick

The utility model relates to a special-shaped fused alumina zirconia firebrick. The special-shaped fused alumina zirconia firebrick structurally comprises a brick body. One set of opposite edges of the brick body are parallel straight lines, the other set of opposite edges of the brick body are parallel curved lines or folded lines, a protruding part or a concaving part is formed in the curved-line-shaped or folded-line-shaped opposite edges of the brick body, and buffering patterns are arranged on the outer side of the protruding part. During using, the curved-line-shaped or folded-line-shaped opposite edges are spliced, the overall regularity of spliced firebricks can be kept through the straight-line-shaped opposite edges, and operation is easy and convenient. The protruding part is provided with a buffering mechanism, the buffering space of the splicing position of the firebrick is properly reserved, space is reserved for later thermal expansion of the firebrick, the gap does not exist on the outer surface of the firebrick, connection between the firebricks is tight, and the insulating effect of the firebrick is not affected.