The invention discloses an equipment cabinet which comprises a cabinet body provided with a plurality of equipment installation grooves. The cabinet body is provided with a gas inlet, gas entering the cabinet body all flows through the gas inlet, and a first dust removing device is arranged on a gas inflow side of the gas inlet. The equipment cabinet further comprises a refrigerator, wherein the refrigerator and the first dust removing device are both arranged on the gas inflow side of the gas inlet. The gas in the cabinet body is filtered through the first dust removing device, dust and other impurities in the gas cannot enter the cabinet body, dust pollution is reduced, operation of equipment in the cabinet body is stable, and safety reliability of a system is high. On the basis, after the gas is cooled through the refrigerator, the temperature of the gas is significantly reduced, after gas in the equipment cabinet flows, heat produced by electronic equipment in the equipment cabinet is brought away, the probability of heat gathering in the equipment cabinet is reduced, the probability that the temperature in the equipment cabinet is higher and higher is reduced, performance of electronic products cannot be affected due to higher and higher temperature, and the operation of the equipment in the equipment cabinet is high in safety reliability.