Horizontally rotating double-knife mowing mower blade arrangement structure

The utility model discloses a lawn mower cutting blade arrangement structure capable of realizing horizontal rotation double blade mowing, wherein two blades are arranged on the same horizontal plane to replace the common structure which only adopts a single blade; therefore, on the premise of ensuring mowing breadth, the utility model reduces the size of each blade to reduce the starting current of a mowing motor and increase the safety of the motor and a control circuit. In order to match with the double blade structure, the utility model designs an 8-shaped blade cavity which is matched with the double blade, thereby realizing the functions of mowing and timely chopping; thus, the utility model crushes mowed grass and directly returns the crushed grass to a lawn as nutrient, thereby omitting the operation of collecting broken grass.