Cold source complementary equipment cabinet

The utility model provides a cold source complementary equipment cabinet which comprises a cabinet body with an opening front portion. The opening position is provided with a front cabinet door. A plurality of air inlets are disposed in the front cabinet door. A side, facing the interior of the equipment cabinet, on the front cabinet door is fixedly connected with at least a fan. Each fan corresponds to at least one air inlet. Side cold channels are disposed on left and right side walls of the equipment cabinet, and are communicated with each other. Through the above technical scheme, when the cold source complementary equipment cabinet is used in a linked row, the side cold channels of two adjacent cold source complementary equipment cabinets are communicated, when refrigeration units of one or more cold source complementary equipment cabinet are damaged or the interiors of the equipment cabinets are maintained, a part of cold volume in the equipment cabinets in good conditions will flow to the cold source complementary equipment cabinets in which the refrigeration units are damaged or maintenance is conducted, so that the wind pressure and volume can be complemented among the cold source complementary equipment cabinets to refrigerate and dissipate heat for the equipment in the cold source complementary equipment cabinets in which the refrigeration units are damaged or the maintenance is conducted.