Method for washing down coats using impeller type washing machine

The invention discloses a method for washing down coats using an impeller type washing machine. The method comprises processes of feeding water, washing, rinsing, and finally dehydrating in sequence, wherein a washing plate is arranged in a washing and dehydrating barrel, and is used for pressing the upper surface of the down coats to prevent from floating; the washing process comprises a low water level section and a high water level section, wherein the washing force of an impeller under the low water level stage is less than that under the high water level stage. According to the method, the down coats are pressed to prevent from being floated via the washing plate based on the characteristic that the down coats are easily floated; with the friction between the down coats and the washing plate, the effect of washing clothes can be achieved; different washing forces are utilized during the washing process based on different water levels, so uniformity in washing is improved, and the effect of cleaning the down coats can be improved.