High-speed paper cutter convenient for collecting shredded paper

The utility model discloses a high-speed paper cutting machine convenient for collecting shredded paper. The high-speed paper cutting machine comprises a case, a working platform, a feeding assembly, a cutting assembly and a collecting assembly, the feeding assembly comprises a lead screw, a first motor, a moving block, a mounting support, a feeding frame, a first telescopic rod and a pressing plate. The cutting assembly comprises a stand column, a second telescopic rod, a third telescopic rod and a cutter. The collecting assembly comprises an inclined plate, a shell, a smashing roller, a second motor, a first belt wheel, a second belt wheel and a collecting box. The feeding assembly is arranged, paper can be clamped for cutting, a worker does not need to hold the paper for cutting, the two hands of the worker are liberated, the labor intensity and the safety risk of the worker are reduced, and the personal safety problem is avoided; and the collecting assembly is arranged, so that cut paper scraps can be cru