Air conditioner connecting pipe for indoor unit and outdoor unit

The utility model relates to an air conditioner connecting pipe for an indoor unit and an outdoor unit, which comprises a connecting piping single body, the connecting piping single body comprises an aluminum connecting pipe, a morning-glory-shaped female connecting part is formed at one end of the aluminum connecting pipe, a conical male connecting part is formed at the other end of the aluminum connecting pipe, and a copper joint pipe is arranged at one end of the aluminum connecting pipe where the female connecting part is located. And the copper joint pipe on the female connecting part of one connecting piping single body is in close contact connection with the male connecting part of the other connecting piping single body. The copper joint pipe is arranged at the end of the aluminum connecting pipe, the female connecting part is formed by pressurizing and expanding the end of the aluminum connecting pipe, and in the process, the copper joint pipe expands together to form the connecting cap wrapping the