Multipurpose drawing pencil sharpener

The invention discloses a multipurpose drawing pencil sharpener. The multipurpose drawing pencil sharpener comprises a base and an upper cover, wherein the upper cover covers an opening in the upper end of the base; an inverted trapezoidal boss is integrally formed on the lower surface of the front end of the upper cover; an inverted conical hole is formed in the boss; the upper end of the conicalhole is connected with a round hole which is coaxially formed; the round hole penetrates through the upper cover; notches which communicate with the conical hole are formed in the left side wall andthe right side wall of the boss located at the position of the conical hole; the base positioned on the left side and the right side of the boss is slidably connected with sliding blocks; an inclinedsurface which is gradually inclined outwards from bottom to top is arranged on the inner wall of each sliding block; a cutting blade is mounted on the inner wall of each sliding block located at the position of the correspondin