Waste yarn recovery device for loom

The utility model relates to a waste yarn recovery device for a loom. The waste yarn recovery device is characterized by comprising a gas ejector pipe, a collecting pipe, a yarn suction nozzle, a gas inlet nozzle and a housing, wherein a through channel is arranged in the housing, one end of the channel is hermetically communicated with the yarn suction nozzle, one end of the collecting pipe is in threaded connection with the housing and further in butt joint and communication with the other end of the channel, a seal ring is arranged at the butt joint part, a groove is arranged on the outer wall of the end part which is arranged around the collecting pipe and close to the butt joint part, the groove and the housing form a gas bin, the gas inlet nozzle is communicated with the gas bin, a gas hole which is tilted to an outlet of the collecting pipe is formed in the side wall of the collecting pipe, which is positioned at the groove, the gas hole is communicated with the gas bin and the collecting pipe, the gas