The utility model provides a minitype electric dust collector suction head with light weight, low cost and excellent sweeping and grinding performances. The suction head of the utility model comprises an air suction port 15 which is opened downwards, and a rotary body 10 which is adjacent to the air suction port 15 and can be freely rotated, wherein a central axis L of the rotary body 10 in a length direction is approximately parallel to the front and back direction of the main body of the suction head 3 which can be long in the front and back direction. In this way, the utility model can provide a suction head which can clean narrow places and has excellent wiping, sweeping and grinding performances. In addition, the utility model can also provide a minitype electric dust collector suction head which has the advantages of light weight, low cost, high wiping, sweeping and grinding performances and excellent maintainability.