An efficient horizontal spiral buried pipe heat exchanger belongs to the technical field of ground source heat pump air conditioners and is formed by connecting a water distributor, a water collector,a spiral buried pipe, a water inlet pipeline and a water return pipeline. One end of the water distributor is connected with a water distributor water outlet; the center of the other end of the waterdistributor is connected with a water distributor water inlet; one end of the water collector is connected with the water collector water inlet, the center of the other end of the water collector isconnected with the water collector water outlet, the spiral buried pipe is arranged between the water collector water inlet and the water distributor water outlet, and compared with a traditional buried pipe structure, the horizontal spiral spring type buried pipe structure has the advantages that the heat exchange area is increased, and the heat exchange efficiency is improved; through the arrangement of a 2 * 2 buried pipe laying mode, the density of buried pipes can be reduced, timely diffusion of accumulated heat can be accelerated to a certain extent, and the influence caused by soil thermal imbalance is reduced; compared with a traditional vertical pipe burying mode, due to the fact that the burying depth is small, the pipe burying cost is reduced, and the market competitiveness is improved.