Narrow space basement outer wall formwork construction device and using method

The invention discloses a narrow space basement outer wall formwork construction device and a using method, the narrow space basement outer wall formwork construction device and the using method adopt prefabricated hollow high-strength steel formworks capable of being assembled, modular manufacturing is suitable for wall bodies of various sizes, the size of a single body is smaller, and the construction efficiency is improved. Each assembling type prefabricated hollow steel formwork can be assembled according to the size requirement, construction is convenient and fast, the construction cost is reduced, and the assembling type prefabricated hollow steel formwork can adapt to various storey heights, can be repeatedly assembled and disassembled according to the requirement and can be repeatedly used in different projects. According to the narrow space basement outer wall formwork construction device and the using method, the prefabricated hollow high-strength steel formwork and the sliding groove type water sto