PROBLEM TO BE SOLVED: To provide a liquid refining device and a sauna device using the same which can be free of piping for discharging unrefined water in a drying process in a device after liquid refining process and can shorten a drying time.SOLUTION: The present invention includes: a heat exchanger 7 and a fan motor 8 which are provided in an air channel between an air inlet 4 and an air outlet 5 a liquid refining means 9 provided between the fan motor 8 and the air outlet 5 and a control means for controlling the liquid refining means, the heat exchanger 7, and the fan motor 8. A rotating means 13 of the liquid refining means 9 includes a rotational axis 19 and an inverse conical column pipe 22 formed integrally with a plurality of rotational plates 20a, 20b. The control means controls supplying of water to the rotating means 13 and driving of the rotating means 13 and the heat exchanger 7 and the fan motor 8, and detects a water level of a water storage 25 at a first thermister 26, a second thermister 27, and a third thermister 33 to open and close a water feed valve 17.COPYRIGHT: (C)2015,JPO&INPIT【課題】液体微細化運転後の装置内乾燥において微細化できなかった液体の排出のための配管を不要とするとともに、乾燥の時間を短縮できる液体微細化装置とそれを用いたサウナ装置を提供する。【解決手段】吸気口4と排気口5を結ぶ風路に設けた熱交換器7およびファンモータ8と、このファンモータ8と排気口5間に設けた液体微細化手段9と、この液体微細化手段9と熱交換器7およびファンモータ8を制御する制御手段を備え、液体微細化手段9の回転手段13は、回転軸19と、複数の回転板20a,20bと一体に形成された、逆円錐状の揚水管22を備え、制御手段は、回転手段13への水供給と回転手段13と熱交換器7およびファンモータ8の運転とを制御するとともに、第一のサーミスタ26及び第二のサーミスタ27、第三のサーミスタ33で貯水部25の水位を検知して給水弁17を開閉する。【選択図】図2