To provide a sweeper device enabling the quick replacement of a container holding member without relying on the manual operation of a worker and having an enhanced production efficiency and a container conveying device.

This sweeper device 3 for conveying a predetermined quantity of containers Ca to be conveyed with an aligned state comprises the container holding member 5 brought into contact with the containers Ca aligned in order from the downstream side in the conveying direction, side guide members 9 brought into contact with the containers from the sides in the conveying direction, and a pressing member brought into contact with the containers from the upstream side in the conveying direction. The container holding member 5 has at least two different container holding parts 5a, 5a. An aligned state maintaining member for maintaining the aligned state of the containers Ca is fitted to at least one of the container holding parts 5a, 5b. The container holding parts are changeable according to the dimensions of the containers.