Split-type computer convenient for heat dissipation

The invention discloses a split-type computer convenient for heat dissipation. A table and a seat are installed on two ground rails in a sliding mode, the ground rails are buried in a floor, an equipment box is arranged on the lower portion of the seat, accessories supporting operation of the computer are installed in the equipment box, and the accessories comprise a mainboard, a power source, a hard disk, a display card, a cooling fan and refrigeration equipment. The interior of the equipment box is divided into an accessory area and a refrigeration area which are separated by a partition plate, the power source and the refrigeration equipment are installed in the refrigeration area, the power source is installed at the bottom of the refrigeration area, a bottom box plate below the power source is a hollowed-out plate, the refrigeration equipment is installed in the middle of the refrigeration area, and a three-way valve is arranged on a cold air pipe of the refrigeration equipment. One cold air pipe passing