Vacuum pump cooling water recovery device

The utility model particularly relates to a vacuum pump cooling water recovery device in a maltitol production process. The vacuum pump cooling water recovery device comprises a vacuum pump and is characterized in that a water outlet of the vacuum pump is connected with a water tank through a water outgoing pipe, the water tank is connected with a condensate water tank through a delivery pipe, and a delivery pipe is arranged on the delivery pipe. The vacuum pump cooling water recovery device has the advantages of simple structure, convenience in use and water saving. By the vacuum pump cooling water recovery device, cooling water used in the running process of the vacuum pump is collected into the water tank for natural cooling; when temperature is lowered to a set value, a temperature sensor gives out a signal, and a control box starts the delivery pump and controls a valve to deliver the cooling water into the condensate water tank to be provided to other processes needing condensate water, so that water resources are saved, and burdens of a water treatment plant are reduced.