An entrance refrigerator, comprising: a cabinet including a front opening, a side opening and an interior space, the cabinet being configured to be embedded in an outer wall partitioning an indoor area and an outdoor area and to receive an article from the outdoor area through the front opening; a guide plate partitioning the interior space into a storage compartment at a front surface of the guide plate and a cold air generating compartment at a rear surface of the guide plate; an outer door configured to selectively open and close the front opening, the outer door having an outer surface exposed to the outdoor area; an inner door configured to selectively open and close the side opening, the inner door having an outer surface exposed to the indoor area; and a cold air supply assembly configured to supply cold air to the storage compartment, the cold air supply assembly including: a first cold air supply module mounted on an upper portion of a rear surface of the cabinet; and a second cold air supply module mounted on a lower portion of the rear surface of the cabinet; and an internal air guide provided on the rear surface of the guide plate between the first cold air supply module and the second cold air supply, the internal air guide being configured to guide cold air moved by the first cold air supply module and the second cold air supply to the storage compartment, wherein each of the first cold air supply module and the second cold air supply module includes a thermoelectric element, the 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, wherein each of the first cold air supply module and the second cold air supply module further comprises: a cold sink attached to the endothermic surface of the thermoelectric element; a heat sink attached to the exothermic surface of the thermoelectric element; a heat absorption fan positioned in front of the cold sink; a heat dissipation fan positioned behind the heat sink; and an insulation block surrounding the edges of the thermoelectric element, and wherein the inner air guide is located between the heat absorption fan of the first cold air supply module and the heat absorption fan of the second cold air supply module, and formed in the manner that cold air flowing by the heat absorption fan of the first cold air supply module and cold air flowing by the heat absorption fan of the second cold air supply module are supplied to the storage compartment without being mixed with each other. a cabinet including a front opening, a side opening and an interior space, the cabinet being configured to be embedded in an outer wall partitioning an indoor area and an outdoor area and to receive an article from the outdoor area through the front opening; a guide plate partitioning the interior space into a storage compartment at a front surface of the guide plate and a cold air generating compartment at a rear surface of the guide plate; an outer door configured to selectively open and close the front opening, the outer door having an outer surface exposed to the outdoor area; an inner door configured to selectively open and close the side opening, the inner door having an outer surface exposed to the indoor area; and a cold air supply assembly configured to supply cold air to the storage compartment, the cold air supply assembly including: a first cold air supply module mounted on an upper portion of a rear surface of the cabinet; and a second cold air supply module mounted on a lower portion of the rear surface of the cabinet; and a first cold air supply module mounted on an upper portion of a rear surface of the cabinet; and a second cold air supply module mounted on a lower portion of the rear surface of the cabinet; and an internal air guide provided on the rear surface of the guide plate between the first cold air supply module and the second cold air supply, the internal air guide being configured to guide cold air moved by the first cold air supply module and the second cold air supply to the storage compartment, wherein each of the first cold air supply module and the second cold air supply module includes a thermoelectric element, the 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, wherein each of the first cold air supply module and the second cold air supply module further comprises: a cold sink attached to the endothermic surface of the thermoelectric element; a heat sink attached to the exothermic surface of the thermoelectric element; a heat absorption fan positioned in front of the cold sink; a heat dissipation fan positioned behind the heat sink; and an insulation block surrounding the edges of the thermoelectric element, and wherein the inner air guide is located between the heat absorption fan of the first cold air supply module and the heat absorption fan of the second cold air supply module, and formed in the manner that cold air flowing by the heat absorption fan of the first cold air supply module and cold air flowing by the heat absorption fan of the second cold air supply module are supplied to the storage compartment without being mixed with each other.