PURPOSE: To improve the operability and dust collecting property in the cleaning work by providing spherical casters on the floor facing surface of a nozzle main body, and outward-spreadly arranging end sections of blades provided in parallel on the front and rear of the floor facing surface.

CONSTITUTION: Spherical casters 7 are provided on the right and left of the floor facing surface 8 of a nozzle main body 5 having a suction port 6, and blades 9, 10 are provided in parallel at the front and rear of the floor facing surface 8. The blades 9, 10 are arranged so that both end sections are spread outward. The blades 9 are divided in multiple portions, and intervals 11 are provided between the divided blades 9. A dust sucking nozzle can freely be moved over 360° longitudinally and obliquely by the action of the spherical casters 7, and very high operability is obtained. The end sections of the blades 9, 10 are spread outward, and dust can easily be sucked from the lateral and oblique directions of the blades 9, 10. Dust can efficiently be sucked through the intervals 11 between the blades 9 from the front direction.