Center wire feeding laser surfacing head

The invention relates to a center wire feeding laser surfacing head which comprises a surfacing head body, a plurality of incident light channels are arranged in the surfacing head body, light path reflecting parts are arranged at the tail ends of the incident light channels, a plurality of reflected light channels are arranged in the surfacing head body, the reflected light channels are communicated with the incident light channels, and the incident light channels and the reflected light channels form light channels. The wire feeding pipe penetrates through the surfacing head body, the axes of the multiple reflected light channels and the axis of the lower end of the wire feeding pipe intersect at a welding spot below the surfacing head body, and multiple laser beams enter from the multiple incident light channels, are emitted out from the reflected light channels after being reflected at the light path reflecting part and are converged at the welding spot. High-power and small-light-spot laser output is ach