Building formwork lifting device, cross-storey transport system comprising same and cross-storey transport method

The invention provides a building formwork lifting device, a cross-storey transport system comprising the same, and a cross-storey transport method, and belongs to the technical field of building construction. The building formwork lifting device can lift a building formwork by being attached to the wall, the lifted building formwork only needs to move transversely along the wall without being subjected to long-distance transporting, and in addition, the building formwork lifting device is suitable for lifting of large formworks, high in lifting efficiency, low in cost and small in risk. The building formwork lifting device comprises a first telescopic rod, a lifting beam and lifting appliances for being connected with the building formwork; the first telescopic rod can expand and stretchin the vertical direction, the lower end of the first telescopic rod is fixedly connected to a built shear wall, and the upper end of the first telescopic rod is fixedly connected to the lifting beam;the lifting beam extends