The invention relates to a grain bin clearance turning device which comprises a telescopic oil cylinder (1), an outer bracket (2), an inner bracket (4), a lifting device (5) and a collecting basin (6), wherein a guide rail is arranged on a center line of the outer bracket (2); the lifting device (5) is set as a spiral type lifting device; the lifting device (5) is arranged on the guide rail of the bracket (2) and connected with the guide rail of the bracket (2) in a sliding way; the collecting basin (6) is a container with an inner cavity; the inner bracket (4) is set as a shape corresponding to the collecting basin (6), and the collecting basin (6) is arranged at the central part of the inner bracket (4); the collecting basin (6) is fixedly connected with the inner bracket (4); the side edge of the inner bracket (4) is provided with the telescopic oil cylinder (1); one end of the telescopic oil cylinder (1) is connected with the outer bracket (2), and the other end is connected with the inner bracket (4); the inlet part of the lifting device (5) is arranged in the collecting basin (6) and fixedly connected with the collecting basin (6). Accordingly, the invention carries out bin clearance and overturning without manpower.