The utility model discloses a green intelligent self-circulation detachable building external hanging device, which relates to the field of building external hanging facilities and comprises an external hanging frame, and a solar photovoltaic panel power supply module, a rainwater collection module, an automatic
irrigation module, a hot-pressing ventilation technology module and an intelligent
monitoring system which are arranged on the external hanging frame, the solar photovoltaic panel power supply module comprises a solar photovoltaic panel and a
lithium battery; the rainwater collecting module comprises a water collecting tank, a
water storage tank and a water conveying
pipe, a solar panel is also used as a water collecting slope, the automatic
irrigation module comprises a purification
green wall, an
irrigation pipeline and a
drip irrigation head, and the
drip irrigation head is used for providing water for green plants in the purification
green wall; the hot-pressing ventilation technology module comprises a
grating and a cavity, and the intelligent
monitoring system comprises a controller, a communication module and a temperature and
humidity sensor. The device disclosed by the utility model not only can utilize
natural energy to the maximum extent and realize
self energy recycling, but also can be conveniently mounted on an outer wall of a building, and has a certain intelligent monitoring function.