A refrigerator, comprising: a storage compartment; a refrigeration air passage configured to supply refrigeration air; a top air passage provided at a top wall of the storage compartment and connected with the refrigeration air passage to receive refrigeration air therefrom; an air guiding pipe comprising an air inlet end connected with the top air passage and an air outlet end for supplying air to the storage compartment, and a first air supply device configured to cause air flow to enter the air guiding pipe via the top air passage, such that the refrigeration air flowing into the top air passage from the refrigeration air passage is blown downwards in a concentrated manner via the air guiding pipe, characterized in that the air guiding pipe is bent downwards to the air outlet end after horizontally extending for a predetermined length from the air inlet end to form an air outlet opening downwards; in that the first air supply device is arranged inside the top air passage and/or the air guiding pipe; and in that the top air passage is longitudinally arranged in a corner at the top of the storage compartment, which extends longitudinally, a rear end of the top air passage is formed with an air inlet communicating with the refrigeration air passage, and a front end of the top air passage is formed with an air outlet for supplying air to the air guiding pipe, wherein a horizontal portion of the air guiding pipe extends transversely; and an air outlet of the air guiding pipe faces a vertical downside direction, and is provided at the transverse center of the storage compartment; wherein the refrigeration air passage is arranged at a rear wall of the storage compartment, and comprises a first air outlet communicating with the storage compartment and a second air outlet communicating with the top air passage, the refrigeration air passage comprises a general refrigeration air passage, and a first branch and a second branch respectively communicating with the general refrigeration air passage; and wherein at least one first air outlet is provided on the first branch; and the second air outlet is provided on the second branch, an air passage switching device configured to controllably close or open the first branch and/or the second branch, the air passage switching device comprises a first air door and a second air door, the first air door is arranged at the air inlet of the general refrigeration air passage to control the opening and closing of the general refrigeration air passage, the second air door is arranged at the air inlets of the first and second branches (22,23) to close the second branch when opening the first branch and close the first branch when opening the second branch. a storage compartment; a refrigeration air passage configured to supply refrigeration air; a top air passage provided at a top wall of the storage compartment and connected with the refrigeration air passage to receive refrigeration air therefrom; an air guiding pipe comprising an air inlet end connected with the top air passage and an air outlet end for supplying air to the storage compartment, and a first air supply device configured to cause air flow to enter the air guiding pipe via the top air passage, such that the refrigeration air flowing into the top air passage from the refrigeration air passage is blown downwards in a concentrated manner via the air guiding pipe, characterized in that the air guiding pipe is bent downwards to the air outlet end after horizontally extending for a predetermined length from the air inlet end to form an air outlet opening downwards; in that the first air supply device is arranged inside the top air passage and/or the air guiding pipe; and in that the top air passage is longitudinally arranged in a corner at the top of the storage compartment, which extends longitudinally, a rear end of the top air passage is formed with an air inlet communicating with the refrigeration air passage, and a front end of the top air passage is formed with an air outlet for supplying air to the air guiding pipe, wherein a horizontal portion of the air guiding pipe extends transversely; and an air outlet of the air guiding pipe faces a vertical downside direction, and is provided at the transverse center of the storage compartment; wherein the refrigeration air passage is arranged at a rear wall of the storage compartment, and comprises a first air outlet communicating with the storage compartment and a second air outlet communicating with the top air passage, the refrigeration air passage comprises a general refrigeration air passage, and a first branch and a second branch respectively communicating with the general refrigeration air passage; and wherein at least one first air outlet is provided on the first branch; and the second air outlet is provided on the second branch, an air passage switching device configured to controllably close or open the first branch and/or the second branch, the air passage switching device comprises a first air door and a second air door, the first air door is arranged at the air inlet of the general refrigeration air passage to control the opening and closing of the general refrigeration air passage, the second air door is arranged at the air inlets of the first and second branches (22,23) to close the second branch when opening the first branch and close the first branch when opening the second branch.