The utility model discloses a multifunctional vertical face spraying device, which belongs to the technical field of spraying and comprises a spraying panel and a clamping mechanism. The spraying panel is provided with a first horizontal sliding groove and a second horizontal sliding groove which are parallel. The clamping mechanism is provided with a first clamping plate and a second clamping plate which are perpendicular to the first horizontal sliding groove and the second horizontal sliding groove. The clamping plates can keep the included angle between the clamping plates and the first horizontal sliding groove and the included angle between the clamping plates and the second horizontal sliding groove unchanged. A linkage structure is arranged between the first clamping plate and the second clamping plate, so that a spraying worker moves the first clamping plate or the second clamping plate with a single hand, the first clamping plate and the second clamping plate can clamp or release a to-be-sprayed
assembly, and one hand can be liberated for positioning the to-be-sprayed
assembly; and therefore, one spraying worker can position and clamp the to-be-sprayed
assembly, the working efficiency is greatly improved, and the labor cost is reduced.