High-rise directly connected heat supply unit

The invention relates to a high-rise directly connected heat supply unit and belongs to the technical field of heat supply. The high-rise directly connected heat supply unit comprises a low-pressure water supply pipe, a low-pressure return water pipe, a high-pressure pipe network heat supply pipe, a high-pressure pipe network return water pipe, a dirt separator, a pressure controller and pressure pumps, the low-pressure water supply pipe is connected with the dirt separator and then is divided into two pressurization heat supply pipe groups, each pressurization heat supply pipe group is sequentially connected with a butterfly valve, a pressure pump, a check valve and a second butterfly valve and then is connected with the high-pressure pipe network heat supply pipe, the low-pressure return water pipe is connected with the high-pressure pipe network heat supply pipe by virtue of the pressure controller, the water outlet of the dirt separator is connected with the pressure controller by virtue of a ball valve,