Fanless super-silent split air conditioner

The invention discloses a fanless super-silent split air conditioner, which comprises an outdoor unit with an outdoor coolant circuit and an indoor unit with an indoor coolant circuit communicated with the outdoor coolant circuit; the radiator of the indoor unit is an evaporation fin having a radiator structure; the evaporation fin is mounted on the indoor unit case; and one end of the evaporation fin is connected with an air pipe of an adaptor, while the other end is connected with the liquid pipe of the adaptor. The indoor unit adopts a heat exchanger, which is an evaporation fin with a large surface area, to perform heat exchange with the air fully and conduct cooling and heating functions; the indoor unit does not have any fan, so air flow noises are prevented and a super-silent effect is realized; and the structure of the air conditioner is simpler than that of the conventional air conditioner, and the air conditioner is particularly suitable to be used in places with very strict requirements on noises.