The invention provides a cutting torch for steelmaking and continuous casting. The cutting torch for steelmaking and continuous casting belongs to the technical field of burners. The cutting torch for steelmaking and continuous casting solves the problems of turbulence and poor cutting effect in the existing cutting torch. The cutting torch for steelmaking and continuous casting comprises a middle main body and a mixed air pipe which is arranged on the middle main body, wherein the mixed air pipe is communicated to a cutting nozzle assembly. The middle main body is further fixedly connected with a cutting oxygen pipe, the end of the cutting oxygen pipe is arranged to be in the shape of a circular arc, the end of the cutting oxygen pipe is communicated to the cutting nozzle assembly, and the axis of the cutting nozzle assembly is parallel to the tangent of the end of the cutting oxygen pipe. The cutting torch for steelmaking and continuous casting has the advantages of no turbulence, convenient cutting and good cutting effect.