Rolling mill roller lubricant spraying structure and spraying method thereof

The invention discloses a rolling mill roller lubricant spraying structure and a spraying method thereof. The rolling mill roller lubricant spraying structure comprises a bottom plate, a lifting mechanism, spraying pieces and a liquid conveying pump, wherein supporting columns are fixed to the four corners of the top end of the bottom plate, the top ends of the four sets of supporting columns areconnected with a supporting plate, the lifting mechanism and a liquid storage tank are fixed to the top end of the bottom plate, the top end of the lifting mechanism is connected with the top plate, afiltering piece and the liquid conveying pump are fixed to the top end of the liquid storage tank, a liquid inlet pipe of the liquid conveying pump extends into the liquid storage tank, a liquid outlet pipe of the liquid conveying pump is connected with a three-way pipe, the three-way pipe is connected with two sets of hoses, the ends, away from the three-way pipe, of the two sets of hoses are connected with two sets of g