Double-channel power head structure

The invention provides a double-channel power head structure. The structure comprises a main shaft provided with a hollow pipeline, a first rotary joint and a second rotary joint, wherein the two ends of the main shaft are sleeved with the first rotary joint and the second rotary joint respectively. The first rotary joint is provided with a first channel communicated with the hollow pipeline, the second rotary joint is provided with a second channel and a connector, the second channel is communicated with the hollow pipeline, the connector wraps the outer layer of the main shaft and extends outwards from the end of the main shaft to form a connection structure, and the connection structure is communicated with a drill pipe. The double-channel power head structure has the advantages of being simple in structure, ingenious in design, adjustable in flow, quick in switching and the like.