The invention discloses an unpowered well bottom pulverized coal discharging assistance device of a coal-bed gas well. The unpowered well bottom pulverized coal discharging assistance device comprisesan outer pump cylinder, a pump cylinder hanging hoop, a positioning device, a main shaft rear end guide device, an outer cylinder, a main shaft, rollers, roller keys, a flow guide device, a flow guide device key, a main shaft front end guide device, a fairing, an impeller and fastening bolts. According to the device, the pump cylinder hanging hoop is in threaded connection with the outer pump cylinder, the main shaft rear end guide device is in threaded connection with the pump cylinder hanging hoop, the main shaft front end guide device is in threaded connection with the fairing, the pump cylinder hanging hoop, the fairing and the outer cylinder are in threaded connection, the main shaft is connected with the main shaft rear end guide device and the main shaft front end guide device, thepositioning device is connected with the main shaft, the main shaft is connected with the positioning device through the main shaft rear end guide device and the main shaft front end guide device, the rollers are connected with the main shaft through the roller keys, the flow guide device is connected with the main shaft through the flow guide device key, and the impeller is connected with the main shaft and the fastening bolts. The unpowered well bottom pulverized coal discharging assistance device is simple in structure, saves energy, protects the environment and is obvious in discharging assistance effect.