The utility model relates to a gaseous condensing equipment, concretely relates to oil filter vacuum pump protector, including casing, intake pipe, outlet duct, the vacuum pump protector passes through intake pipe and high temperature tank connection, through outlet duct and vacuum pump connection, its characterized in that, and still including condenser pipe, air exhauster, the left surface fixed connection of condenser pipe one end and casing, the right flank fixed connection of the condenser pipe other end and casing, the right side at the casing is installed to the air exhauster, the condenser pipe is hollow siphunculus, condenser pipe hole left side and atmosphere intercommunication, and condenser pipe hole right side and air exhauster intercommunication, the outer wall and the casing of condenser pipe form inclosed airflow channel, adopt above -mentioned technical scheme's oil filter vacuum pump protector, and simple structure uses safe and reliable, reduces to inhale the gaseous temperature of vacuum pump, detaches the most moisture among the high -temperature gas, protects and prolong the life of vacuum pump, reduces the running cost of oil filter.