Multifunctional coffee bean grinder

A multifunctional coffee bean grinder comprising a motor disposed at an predetermined position in a middle portion of a vertically oriented grinder body, the motor having a driving shaft with a first coupling portion and a second coupling portion respectively formed at two ends of the motor, the first and second coupling portions simultaneously outputting power to be respectively connected to a first grinding unit and a second grinding unit;

• wherein the first grinding unit includes a first fixed tooth member and a first movable tooth member, the first fixed tooth member is a disc-shaped structure connected to an end of the body through a first cover, and the first movable tooth member is also a disc-shaped structure disposed opposite to the first fixed tooth member in a meshing relationship, the first movable tooth member is connected with the first coupling portion so as to be driven by the motor to rotate for grinding coffee beans into flake-shaped powder particles;
• wherein the second grinding unit includes a second fixed tooth member and a second movable tooth member, the second fixed tooth member is an annular structure fixed to the other end of the body, and the second movable tooth member is a conical structure having a center connected and fixed with the second coupling portion so as to be driven by the motor to rotate for grinding coffee beans into three-dimensional granular powder.