The present invention relates to a nasal irrigator comprising: a washing water supply unit for automatically spraying the washing water from a supply tank to one nostril to wash the same； and a washing water recovering unit for recovering contaminated water discharged from the other nostril after washing to a recovery tank to make the recovered water separated and treated, thereby enabling a user to wash nasal cavity in a convenient and hygienical way. The nasal irrigator of the present invention comprises the washing water supply unit and the washing water recovering unit in the main body of the nasal irrigator. The washing water supply unit includes: a supply tank receiving washing water； an inlet supplying the washing water to the supply tank； an air pumping device joined to the inlet to compress the air in the supply tank； a supply pipe installed vertically at one side of the upper part of the supply tank to have the lower part connected to the washing water in the supply tank and the upper part connected to a supply hose； an opening/closing valve installed in the pipeline along the supply pipe to open or close the pipeline； and a spray nozzle installed on an end portion of the supply hose which is flexible and connected to the supply pipe and disposed to be able to. The washing water recovering unit includes: a recovery tank containing contaminated water discharged after washing nasal cavity； a recovery pipe having a connection unit connected to the upper end of the recovery tank and having an air outlet； and a recovery nozzle installed on an end portion of the recovery hose which is flexible and connected to the upper side of the recovery pipe.COPYRIGHT KIPO 2020본 발명은 세척수공급부에 의해 공급탱크의 세척수를 일측 콧구멍에 자동 분사시켜 세척이 이루어지도록 하고, 세척수회수부에 의해 반대편 콧구멍으로 세척되어 토출되는 오염수는 회수탱크로 회수되어 분리처리할 수 있도록 한 구성으로 간편하고 위생적으로 사용할 수 있도록 한 코 세척기에 관한 것이다.즉, 본 발명은 세척기 본체에 세척수공급부와 세척수회수부가 구비되되 상기 세척수공급부는； 세척수가 수용되는 공급탱크와, 상기 공급탱크에 세척수를 공급하기 위한 주입구와, 상기 주입구에 결합되어 공급탱크내에 공기압축이 이루어지도록 하는 에어펌핑기와,
