Multifunctional lubricating oil filling device

The utility model provides a multifunctional lubricating oil filling device which comprises a movable base, a storage box is arranged at the top of the movable base, a stirring and heating module is arranged in the storage box, an oil inlet module and an electronic metering pump are arranged at the top of the storage box, and an oil inlet pipeline of the electronic metering pump extends into the bottom of the storage box. An oil outlet pipeline of the electronic metering pump is connected with a first port of the electromagnetic three-way valve, a second port of the electromagnetic three-way valve is connected with the adjustable filling head module through an oil conveying pipe, a third port of the electromagnetic three-way valve is connected with the oil return component through an oil return pipe, and the oil return component is arranged on one side of the storage box and communicated with the storage box. The multifunctional lubricating oil filling device is simple in structure, lubricating oil can be pre