Land transportation refrigerated container

A land transportation refrigerated container comprises a container body and a refrigerating unit. The box body comprises a bottom frame, a top plate and a wall plate located between the periphery of the bottom frame and the periphery of the top plate, an inner cavity is defined by the bottom frame, the top plate and the wall plate jointly, and a mounting notch is formed in the wall plate; the refrigerating unit is fixed to the outer side of the wall plate and correspondingly arranged at the mounting notch, an embedding part arranged in the mounting notch is arranged on a shell of the refrigerating unit in a protruding mode, and an air outlet and an air return opening are formed in the surface, located in the inner cavity, of the embedding part; an air guide cover is arranged in the inner cavity, a closed annular connecting end is formed at one end of the air guide cover, the connecting end is fixed to the surface of the embedding part and surrounds the periphery of the air outlet, the other end of the air gui