PERSON WAS OPERATING SHEAR ON LONGWALL FACE, ANOTHER MAN WAS PULLING SUPPORTS UP OVER SHEAR. PERSON WAS LOOKING BACK AT TAILGATE DRUM WHEN A HOSE FOR BASE LIFT ON SUPPORT BLEW. PERSON WAS STRU CK ON THE LEFT SIDE OF FACE EMUSION BLUID, SOME OF FLUID GOT PAST HIS GLASSES AND INTO LEFT EYE.