Split air conditioner capable of automatically washing outdoor machine

The utility model discloses a split air conditioner capable of automatically washing outdoor machine, which comprises an indoor machine with a controller and an outdoor machine with a condenser, wherein an automatic washing device and an automatic spraying system are arranged inside the outdoor machine; the automatic washing device comprises a synchronic motor, a belt transmission mechanism which is connected with a synchronic motor output shaft and a cleaning brush which is fixed on a transmission belt, and the cleaning brush makes reciprocating movement together with a transmission belt; the automatic spraying system comprises a water box which is arranged inside the outdoor machine, a water pump which is arranged inside the water box, a water level switch and a guiding groove which is mounted on the condenser, and the output end of the water pump is connected with the guiding groove, and the bottom part of the guiding groove is provided with a plurality of small holes corresponding to the position of the c