The utility model provides grain circulation formula high -efficient dryer relates to grain production technical field, including dryer body, fixed setting on the
support surface,
drying cavity, opening in the inside of dryer body,
drying mechanism, the number is two, respectively fixed setting at the front of dryer body and the top of dryer body, is used for carrying out
drying treatment to the grain in the inside of drying cavity, a plurality of installation groove all open in the front and back side wall of the inside of dryer body, pass through double drying mechanism (front + top)
layout, cooperate vibration conveying mechanism extension soybean grain conveying path, make soybean grain in drying cavity contact with dry
airflow fully, solve the problem that the traditional single drying source, the short conveyance lead to the uneven drying problem, let soybean grain receive the more comprehensive baking, improve overall drying efficiency.