Computer case

The invention discloses a computer case, which belongs to the field of computer accessories and is used for effectively controlling the temperature and dust content in the case to achieve the purpose of ensuring safety use of a computer. According to the technical scheme, the computer case mainly comprises the case; 6-8 semiconductor refrigerating chips are mounted in the case; the semiconductor refrigerating chips are mounted on the inner surface of a housing of the case and connected with a temperature control chip; and a micro-dedusting fan is further mounted in the case. During use, the temperature control chip can perform judgment according to the temperature change in the case and enable the semiconductor refrigerating chips to work, and if a requirement is met, the semiconductor refrigerating chips stop working, so that the temperature in the case is ensured to be in a proper range; and the micro-dedusting fan continuously works for timely treating the dust in the case, so that the environment in the c