The present invention is a variable capsule-type hot-air bath apparatus includes: a first hot-air bath apparatus (100) having a first cover (110) which covers and protects the upper part thereof, a first film heater (120) which is attached to the lower part of the first cover (110) so as to generate heat, a first frame (140) which is attached and fixed to the circumference of one side of the lower part of the first cover (110) and which is formed into a U-shape, legs (150) which are coupled to the lower part of one side of the first frame using bolts, and wheels (160) which are coupled to the lower part of the legs using bolts and a second hot-air bath apparatus (200) having a second cover (210) which covers and protects the upper part thereof, a second film heater (220) which is attached to the lower part of the second cover (210) so as to generate heat, a second frame (240) which is attached and fixed to the circumference of one side of the lower part of the second cover and which is formed into a U-shape, a rail part (230) which is mounted on and fixed to both inner sides of the second frame (240) so as to facilitate movement, legs (150) which are coupled to the lower part of one side of the second frame using bolts, and wheels (160) which are coupled to the lower part of the legs (150) using bolts. The present invention, which is a capsule-type hot-air bath apparatus having an inverted U-shape, is roughly divided into the first hot-air bath apparatus (100) and the second hot-air bath apparatus (200), and the second hot-air bath apparatus (200) can be moved so as to lengthen or shorten the invention depending on the application by means of the rail (230) which is formed in the second hot-air bath apparatus (200). In addition, the wheels (160) which are formed in the lower part of the legs (150) facilitate movement and by having a simple structure and being easy to assemble, anyone can enjoy a hot-air bath.La présente invention concerne un appareil de bain dair ch
