Film blow molding machine

The invention discloses a film blow molding machine which comprises a bracket; a first machine station and a second machine station are fixedly connected onto the bracket; the first machine station isarranged below the second machine station; and a mouth mold penetrates through and is fixedly connected with the side wall of the upper end of the first machine station. The film blow molding machineis reasonable and simple in structure, avoids the situation that nonuniform convection of cold and hot air takes place in the middle of a film cylinder to cause that the middle of the film cylinder expands and deforms and a film product is poor in toughness, can be adjusted according to the specific production status, avoids the situation that the film cylinder and the side wall of a discharginghole collide or the film cylinder and clamping plates have friction to cause that the film is nonuniform in thickness and even damaged, enables the cylindrical film to be rolled into a double-deck flat film conveniently, and im