A fiber waste collection device arranged for a textile machine so as to collect fiber waste generated in the textile machine, the fiber waste collection device comprising: a fiber waste transfer pipe (11, 11a to 11d) arranged with a plurality of suction units for suctioning the fiber waste such that the fiber waste suctioned from the plurality of suction units is transferred through the fiber waste transfer pipe (11, 11a to 11d); a connection unit (12, 12a to 12d) arranged at one end side in a longitudinal direction of the fiber waste transfer pipe (11, 11a to 11d) and connected to a compressed air supply source for supplying compressed air; and a fiber waste collection unit connected with the fiber waste transfer pipe (11, 11a to 11d) at the other end side in a longitudinal direction of the fiber waste transfer pipe (11, 11a to 11d) so as to collect the fiber waste, wherein each of the plurality of suction units includes a suction pipe having one end side communicating with the fiber waste transfer pipe (11, 11a to 11d) and the other end side arranged with a suction port for suctioning the fiber waste, the suction pipe being formed with a compressed air injection nozzle hole for injecting compressed air thereinto between the one end side and the other end side of the suction pipe, the compressed air injection nozzle hole being configured such that compressed air is injected therefrom within the suction pipe toward the one end side of the suction pipe, and each of the plurality of suction units further includes an opening/closing member (19, 19a to 19d) for opening and closing the suction port, and wherein the connection unit (12, 12a to 12d) includes an opening/closing control valve (27, 27a to 27d) to be opened and closed in a switchable manner between an opened state and a closed state thereby to control supply of compressed air toward the fiber waste transfer pipe (11, 11a to 11d), the fiber waste collection device further comprising: a controller configured to control an opening/closing operation of the opening/closing member (19, 19a to 19d) and opening/closing of the opening/closing control valve (27, 27a to 27d), wherein the controller performs an opening control of the opening/closing control valve (27, 27a to 27d) of the connection unit (12, 12a to 12d) when causing the opening/closing member (19, 19a to 19d) to perform an opening operation of the suction port. a fiber waste transfer pipe (11, 11a to 11d) arranged with a plurality of suction units for suctioning the fiber waste such that the fiber waste suctioned from the plurality of suction units is transferred through the fiber waste transfer pipe (11, 11a to 11d); a connection unit (12, 12a to 12d) arranged at one end side in a longitudinal direction of the fiber waste transfer pipe (11, 11a to 11d) and connected to a compressed air supply source for supplying compressed air; and a fiber waste collection unit connected with the fiber waste transfer pipe (11, 11a to 11d) at the other end side in a longitudinal direction of the fiber waste transfer pipe (11, 11a to 11d) so as to collect the fiber waste, wherein each of the plurality of suction units includes a suction pipe having one end side communicating with the fiber waste transfer pipe (11, 11a to 11d) and the other end side arranged with a suction port for suctioning the fiber waste, the suction pipe being formed with a compressed air injection nozzle hole for injecting compressed air thereinto between the one end side and the other end side of the suction pipe, the compressed air injection nozzle hole being configured such that compressed air is injected therefrom within the suction pipe toward the one end side of the suction pipe, and each of the plurality of suction units further includes an opening/closing member (19, 19a to 19d) for opening and closing the suction port, and wherein the connection unit (12, 12a to 12d) includes an opening/closing control valve (27, 27a to 27d) to be opened and closed in a switchable manner between an opened state and a closed state thereby to control supply of compressed air toward the fiber waste transfer pipe (11, 11a to 11d), the fiber waste collection device further comprising: a controller configured to control an opening/closing operation of the opening/closing member (19, 19a to 19d) and opening/closing of the opening/closing control valve (27, 27a to 27d), wherein the controller performs an opening control of the opening/closing control valve (27, 27a to 27d) of the connection unit (12, 12a to 12d) when causing the opening/closing member (19, 19a to 19d) to perform an opening operation of the suction port. a controller configured to control an opening/closing operation of the opening/closing member (19, 19a to 19d) and opening/closing of the opening/closing control valve (27, 27a to 27d), wherein the controller performs an opening control of the opening/closing control valve (27, 27a to 27d) of the connection unit (12, 12a to 12d) when causing the opening/closing member (19, 19a to 19d) to perform an opening operation of the suction port.