The present invention discloses vehicle-mounted overturnable vertical drying equipment which belongs to the grain drying field and can solve problems in the prior art that a grain drying furnace cannot be transported flexibly and cannot be used when needed instantly. The vehicle-mounted overturnable vertical drying equipment comprises an electric motor, mounting brackets, spiral blades, a conveyor casing, a storage hopper, an air outlet hole, three sub-air inlet holes, a main air inlet cylinder, spoiler plates, a furnace body, a first rotating shaft, a second rotating shaft, a hydraulic cylinder, a vehicle frame and wheels. The grain is put into the storage hopper and lifted to the top of the furnace body by the spiral blades, falls from the top to the bottom of the furnace body due to the gravity of grain itself, and is dried by the hot air during the falling process. The three sub-air inlet holes are distributed from top to down within the vertical range of the main air inlet cylinder, and multi-layers of the spoiler plates are used to block the falling grain, and thus the falling time and the drying time are increased to enable the grain to be fully dried. The drying equipment is placed on the transport vehicle frame, can realize be overturned by the hydraulic cylinder, and is horizontally placed on the transport vehicle when being transported and vertically placed when conducting drying work. The vehicle-mounted overturnable vertical drying equipment is easy to operate, high in drying efficiency, and easy to transport.