Multifunctional air-conditioning system

The invention discloses a multifunctional air-conditioning system which comprises a compressor, a throttling element and a heat-transferring working-medium circulation loop formed by connecting two heat exchangers. At least one of the two heat exchangers is a water side heat exchanger; a water inlet pipe and a water outlet pipe are arranged on the water side of the water side heat exchanger; at least one of the water inlet pipe and the water outlet pipe is provided with a water pump; the air-conditioning system also comprises an indoor fan coil and a floor heat exchange coil; an water inlet and an water outlet of the indoor fan coil are connected with the water outlet pipe and the water inlet pipe by the fan coil so as to form a fan coil air-conditioning water circulation loop; an water inlet and an water outlet of the floor heat exchange coil are connected with the water outlet pipe and the water inlet pipe by the floor heat exchange coil so as to form a floor air-conditioning water circulation loop; and a fan coil connecting pipe and a floor coil connecting pipe are both provided with a control valve. The system of the invention can realize the functions of fan coil cooling and heating or floor warming in single equipment and has high comfortableness and excellent energy saving effect.