The invention provides a multifunctional greening wall structure. The multifunctional greening wall structure comprises placing groove cavities, rotating holes, buckling covers, a water tank, throughpipes, valves and vacuum heat collecting pipes; the bottom of the inner side of each placing groove cavity is provided with a bottom plate; the middle part of two ends of the inner side of each placing groove cavity are both fixedly provided with a magnet column; the bottom of each placing groove cavity is rotationally connected with one corresponding buckling cover; a planting box is arranged ona T-shaped sliding groove of each bottom plate through a T-shaped sliding block at the bottom of the planting box; the upper end and the lower end of the water tank are connected with the through pipes; the through pipes at the outer side of a wall body are provided with valves; the vacuum heat collecting pipes are connected on a bottom pipe; and the bottom pipe is connected with the water tank. Each planting box can slide onto the buckling cover through the T-shaped slide block at the bottom of the planting box, so that the planting box is arranged outside; the planting box can also slide onto the bottom plate, so that the plating box is arranged inside; through the arrangement of the vacuum heat collecting pipes, the water in the water tank can be heated by the solar energy; and the temperature in the placing groove cavities is increased through the through pipes at the rear side of the placing groove cavities.