Computer host convenient for dust cleaning

The utility model belongs to the field of computers, and particularly relates to a computer host convenient for dust cleaning, which comprises a case main body, the interior of the case body is hollow, the left side of the interior of the case body is fixedly connected with a mainboard, and the right side, close to the front end, of the mainboard is fixedly connected with a first connecting line; when the power-on button is pressed, the power-on button transmits an electric signal to the mainboard along the first connecting wire, the mainboard can be started and transmits the electric signal to the second connecting wire, then the second connecting wire transmits the signal to the first fan, and therefore the first fan rotates; by means of the structure, the dust can be concentrated to the lower portion of the case body, the problem that precision parts are prone to being damaged due to the fact that dust is cleaned through a cleaning brush in the past is solved, and the cleaning effect of the dust in the cas