A variable capsule-shaped hot-air bath apparatus, includes: a first hot-air bath including a first cover covering and protecting an upper part thereof, a first film heater attached to a lower part of the first cover, a first frame attached and fixed to a circumference of one side of the lower part of the first cover and formed in a U-shape, legs coupled to the lower part of one side of the first frame, and wheels coupled to lower parts of the legs and a second hot-air bath including a second cover covering and protecting an upper part thereof, a second film heater attached to a lower part of the second cover, a second frame attached and fixed to a circumference of one side of the lower part of the second cover, rail parts mounted on and fixed to inner sides of both sides of the second frame for smooth movement.
