Heat-insulation bathing case

The utility model relates to a bath tank, particularly a sealed heat-insulation bath tank, which is composed of a bath tank, a fixed cover, a movable cover, an upper cover plate and a lower cover plate, wherein the fixed cover (3), the movable cover (4), the lower cover plate (12) and the upper cover plate (11) are arranged on the upper opening of the bath tank (1) in the shape of a tank body; an air inlet window (10) is arranged on the top of the upper cover plate, the top of the movable cover is provided with an air exhaust window (5), an air heater (15) is arranged on the rear lower part of the bath tank and communicated with the bath tank by a warm-air pipe (16), and the air heater (15) can regulate the heat and the air in the bath tank. A hot water pipe (17) is connected to a branch pipe tank (18), and water in a bathtub and water for bathing are controlled by a valve (21). The utility model has the advantage of good thermal insulating property and is especially suitable for bathing in winter when the weather is cold.