Computer desk case capable of carrying out heat dissipation on computer

The utility model provides a computer desk case capable of carrying out heat dissipation on a computer, and belongs to the technical field of the computer desk case. The computer desk case is characterized in that an electric fan is arranged on a left case board, a horn-shaped ventilation opening is formed in the inner side of the left case board arranged at the front end of the electric fan, rear case board lower ventilation holes and rear case board upper ventilation holes are formed in a rear case board, left case board upper ventilation holes and left case board lower ventilation holes are formed in the left case board, and right case board upper ventilation holes and right case board lower ventilation holes are formed in a right case board. According to the computer desk case provided by the utility model, the electric fan is arranged on the left case board, the horn-shaped ventilation opening is formed in the inner side of the left case board arranged at the front end of the electric fan, and the horn-shaped ventilation opening faces a computer in a case body; when summer comes and indoor temperature is up to 30 DEG C, side plates of the case of the computer can be disassembled, the electric fan can be used for directly blowing air to a hard disk, a main board and a power supply in the computer and cooling the temperature of the hard disk, the main board and the power supply of the computer, the cooling effect is very good, and the computer can continuously work for 24 hours without crash and automatic shutdown under the environment of which the temperature is greater than or equal to 30 DEG C.