Lift-type extension cabin

The invention discloses a lift-type extension cabin which comprises a movable cabin and a fixed cabin on the lower surface of the movable cabin; extension cabins are arranged on two sides of the movable cabin and two sides of the fixed cabin; the movable cabin is connected with the fixed cabin through a lifting mechanism; the movable cabin comprises a movable cabin top plate, a movable cabin end plate, a movable cabin side plate and a movable cabin partition plate; the fixed cabin comprises a fixed cabin bottom plate, a fixed cabin end plate, a fixed cabin side plate and a fixed cabin partition plate; each extension cabin is provided with an extension cabin top plate, an extension cabin bottom plate, an extension cabin side plate and an extension cabin end plate; the extension cabin top plate is connected with the movable cabin side plate; the extension cabin bottom plate is connected with the fixed cabin bottom plate; a first lifting device is hinged between the extension cabin top plate and the movable cabin; and a second lifting device is hinged between the extension cabin bottom plate and the fixed cabin. Through the use of the lift-type extension cabin, the internal use area of the cabin is increased and the internal height of the cabin is also increased so as to enable human bodies to be comfortable, the railway transportation and the transporter transportation are achieved since a vehicle is not separated from the cabin, the maneuverability and the transportation efficiency of the square extension cabin are improved, and the invention can be suitable for square extension cabins or extension van vehicles.