The invention discloses an environmentally-friendly fuel device. The device comprises a base, and a workable which is fixedly mounted above the base through a bearing board, wherein corner columns aresynchronously arranged at the bottom parts of four corners of the base; threaded holes are formed in the inner bottom parts of the corner columns; a screwing threaded corner is mounted in each threaded hole in a threaded fitting manner; a rotating groove is formed in the worktable; a crushing groove is formed in the top end surface of the worktable above the rotating groove and communicates withthe rotating groove; a positioning chamber is formed in the worktable below the rotating groove; a motor is fixedly mounted in the positioning chamber; a first rotating hinge pin which upwards extendsis connected to the motor; the upward extending end of the first rotating hinge pin passes through the rotating groove and extends out of the top end of the worktable.