Dewatering machine for washing straw

The utility model relates to a dewaterer for washing straw, which is designed to remove mud, sandy soil and soil blocks which are carried by xylophyta and herbage in a paper industry. The utility model is mainly and technically characterized in that an auger is arranged on a main shaft and is arranged in a case body, a feed port and a spraying pipe are arranged at the upper part of the case body, and a water discharge port, a sand removing port and a sieve plate are arranged at the lower half part of the case body; a water squeezing plate is arranged above the main shaft at the back half part of the auger, and the water squeezing and a balance weight can regulate the moisture of the washed straw through regulating the balance weight. The utility model has the advantage of novel design and can solve the work of cleaning plants and removing dust in the process of pulping in the paper industry.