Multi-user ground source heat pump air conditioning system based on public water pump and suitable for high-rise building

The invention discloses a multi-user ground source heat pump air conditioning system based on a public water pump and suitable for a high-rise building. The multi-user ground source heat pump air conditioning system comprises buried pipes, a first heat exchanging circulation pipeline, a heat exchanger, a second heat exchanging circulation pipeline, a first public variable frequency water pump and a plurality of user heat exchanging units, wherein the buried pipes are arranged beneath the earth surface and form a first heat exchanging circulation return circuit with the heat exchanger through the first heat exchanging circulation pipeline; the second heat exchanging circulation pipeline is arranged in the vertical direction from the bottom of the high-rise building to the top of the high-rise building, and forms a second heat exchanging circulation return circuit with the heat exchanger, and the first public variable frequency water pump is in tandem connection with the second heat exchanging circulation retur