The invention belongs to the technical field of ecological
environmental protection, and particularly relates to a vertical ecological
greening device for a building outer wall. The vertical ecological
greening device comprises a planting platform, wherein a planting groove is formed in the planting platform, sliding grooves are formed in the two sides of the planting groove, lifting plates are slidably connected into the sliding grooves in a sealed mode, vertical wind shields are fixedly connected to the upper surfaces of the lifting plates, a horizontal
airflow channel is formed in the planting platform, the two ends of the
airflow channel communicate with the outside, a wind wheel is rotationally connected to the side wall of the
airflow channel through a rotating shaft, a driving cavity is formed in the planting platform, the upper end of the rotating shaft extends into the driving cavity and is fixedly connected with an annular
magnet, the annular
magnet is composed of two sections of magnetic semicircular rings with opposite
magnetic poles, an air pumping mechanism is arranged in the driving cavity, and sealing exhaust mechanisms are arranged in the sliding grooves. When encountering strong wind, the wind shields can extend out of the sliding grooves, a good wind
shielding effect is achieved, and branches and leaves of green plants are prevented from being broken or blown off by the strong wind.