Pipeline repairing die head

The utility model provides a pipeline repairing die head, belongs to the field of engineering construction maintenance, and solves the problems of complicated operation, large damage surface, high technical threshold and the like of the existing repairing process. The die head comprises a male die head body and a female die head body, the front face of the male die head body is a rectangular metal sheet which protrudes outwards to form an arc face, a round concave hole is formed in the center of the arc face, the back face of the male die head body is a supporting body, and a round hole is formed in the rear side of the supporting body, and the front face of the female die head body is a rectangular metal sheet which sinks inwards to form an arc face, a round protrusion is formed in the center of the arc face, and the back face of the female die head body is a supporting body. A round hole is formed in the rear side of the supporting body, the round hole penetrates through a bolt and is fixed to the two sides