An entrance refrigerator, comprising: a cabinet, including: a first surface having a first opening exposed to a first space, the first surface being a front surface of the cabinet; a second surface having a second opening exposed to a second space, the second surface being a side surface of the cabinet; and a storage space, wherein the cabinet is configured to be embedded in an outer wall partitioning the first space and the second space; a first door configured to selectively open and close the first opening; a second door configured to selectively open and close the second opening; and a cold air supply assembly configured to supply cold air to the storage space, wherein the cold air supply assembly includes: a first cold air supply mounted on an upper portion of a rear surface of the cabinet; and a second cold air supply mounted on a lower portion of the rear surface of the cabinet, wherein each of the first cold air supply and the second cold air supply includes: a thermoelectric element including an endothermic surface on a first side of the thermoelectric element and an exothermic surface on a second side of the thermoelectric element, the first side of the thermoelectric element being opposite to the second side of the thermoelectric element; a cold sink mounted on the endothermic surface of the thermoelectric element; a heat absorption fan positioned in front of the cold sink; a heat sink mounted on the exothermic surface of the thermoelectric element; a heat dissipation fan disposed at a rear of the heat sink; and a heat insulation block surrounding edges of the thermoelectric element and disposed between the cold sink and the heat sink to block heat transfer between the cold sink and the heat sink; and the refrigerator further comprises an external air guide (16, 16a) provided at the rear surface of the cabinet between the first cold air supply and the second cold air supply in order to minimize inflow of air discharged from the second cold air supply to the first cold air supply. a cabinet, including: a first surface having a first opening exposed to a first space, the first surface being a front surface of the cabinet; a second surface having a second opening exposed to a second space, the second surface being a side surface of the cabinet; and a storage space, wherein the cabinet is configured to be embedded in an outer wall partitioning the first space and the second space; a first surface having a first opening exposed to a first space, the first surface being a front surface of the cabinet; a second surface having a second opening exposed to a second space, the second surface being a side surface of the cabinet; and a storage space, wherein the cabinet is configured to be embedded in an outer wall partitioning the first space and the second space; a first door configured to selectively open and close the first opening; a second door configured to selectively open and close the second opening; and a cold air supply assembly configured to supply cold air to the storage space, wherein the cold air supply assembly includes: a first cold air supply mounted on an upper portion of a rear surface of the cabinet; and a second cold air supply mounted on a lower portion of the rear surface of the cabinet, a first cold air supply mounted on an upper portion of a rear surface of the cabinet; and a second cold air supply mounted on a lower portion of the rear surface of the cabinet, wherein each of the first cold air supply and the second cold air supply includes: a thermoelectric element including an endothermic surface on a first side of the thermoelectric element and an exothermic surface on a second side of the thermoelectric element, the first side of the thermoelectric element being opposite to the second side of the thermoelectric element; a cold sink mounted on the endothermic surface of the thermoelectric element; a heat absorption fan positioned in front of the cold sink; a heat sink mounted on the exothermic surface of the thermoelectric element; a heat dissipation fan disposed at a rear of the heat sink; and a heat insulation block surrounding edges of the thermoelectric element and disposed between the cold sink and the heat sink to block heat transfer between the cold sink and the heat sink; and a thermoelectric element including an endothermic surface on a first side of the thermoelectric element and an exothermic surface on a second side of the thermoelectric element, the first side of the thermoelectric element being opposite to the second side of the thermoelectric element; a cold sink mounted on the endothermic surface of the thermoelectric element; a heat absorption fan positioned in front of the cold sink; a heat sink mounted on the exothermic surface of the thermoelectric element; a heat dissipation fan disposed at a rear of the heat sink; and a heat insulation block surrounding edges of the thermoelectric element and disposed between the cold sink and the heat sink to block heat transfer between the cold sink and the heat sink; and the refrigerator further comprises an external air guide (16, 16a) provided at the rear surface of the cabinet between the first cold air supply and the second cold air supply in order to minimize inflow of air discharged from the second cold air supply to the first cold air supply.