Computer heat dissipation case with high heat dissipation performance

The invention discloses a computer heat dissipation case with high heat dissipation performance. The computer heat dissipation case comprises a sealed case body, an electronic device, heat absorption heads, a heat absorption shell, a first fixing part, a first heat absorption fan, a first protecting cover, a second protecting cover, a second heat absorption fan, a second fixing part, a cooling water tank, a filtering net, a fan, an air deflector, an air blower, a filtering layer, cooling water, a plurality of heat exchange pipelines, a fixing cover, a water level observation port, universal wheels, a reflux pipeline and a cooler. The computer heat dissipation case has the advantages that the structure is reasonable and simple; during cooling, the first heat absorption fan, the second heat absorption fan and the fan are started first, the first heat absorption fan and the second heat absorption fan can effectively absorb heat inside the sealed case body through the heat absorption heads at the lower side of the heat absorption shell, meanwhile, external air enters the sealed case body uniformly through the heat exchange pipelines after being filtered through the filtering layer to cool the electronic device, and the fan can blow air through the air blower to evaporate the cooling water in the cooling water tank for cooling.