The present invention relates to a lower-body bathing apparatus with a thermal circulation structure. The lower body bathing apparatus with a thermal circulation structure comprises: a hollow case which includes a bottom plate, a front plate coupled to the bottom plate, a rear plate, and both side plates having a sliding rail installed on the upper end part thereof a door installed on the both side plates a sliding cover which is integrated with a lower plate and has both end parts of a lower surface coupled to the sliding rail a lower-body bathing chair installed on an rear side of the bottom plate a first heating device separately installed on the lower part of the lower-body bathing chair a second heating device installed close to the front plate a covering plate having a plurality of through holes installed to be apart from the second heating device and a metal reflective plate which has an upper part installed on the lower surface of the sliding cover to block the heat in the case from being discharged to the outside and has the other end part attached to the inner surface of the front plate. Also, the lower-body bathing apparatus has a head rest to allow a user to stably and comfortably enjoy lower-body bathing. The lower-body bathing apparatus with a thermal circulation structure can prevent an accident, such as burning damage to the sliding plate or burn of a user by having a structure of circulating heat of side plates and the sliding plate and can minimize the loss of energy by blocking the reflective plate to prevent the heat in the case from being discharged to the outside.COPYRIGHT KIPO 2015본 발명은열기 순환구조를 갖는 반신욕기에 관한 것으로, 바닥판과, 상기 바닥판에 결합된 전면판, 배면판 및 상단부에 슬라이딩 레일이 취부된 양측판으로 이루어진 중공구조의 케이스와 상기 양측판에 설치된 도어와 하부판과, 상기 하부판과 일체로 형성되어 있으며 하부면의 양측 단부가 상기 슬라이딩 레일과 결합된 슬라이딩 덮개와 상기 바닥판의 후방에 설치된 반신욕 의자와 상기 반신욕 의자의 하부에 이격설치된 제 1 온열기와 상기 전면판에 인접되게 설치된 제 2 온열기와 상기 제 2 온열기에 이격설치된 복수 개의 관통공이 형성된 가림판과 상기 케이스 내부의 열기가 외부로 빠져나가는 것을 차단하기 위하여 상단부는 상기 슬라이딩 덮개의 하부면에 취부되어 있으며 타단부
