Adjustable-lifting column device for grain conveying bag ship loader

The utility model provides an adjustable-lifting column device for a grain conveying bag ship loader, and relates to the field of column devices with column lifting height adjusting capacity. A hydraulic cylinder top cover (1), an upper outer column (2), an outer column short joint (3) and a lower outer column (5) are connected into a whole through flanges respectively; a hydraulic cylinder (9), a movable column lower section (12) and a spiral chute support frame (8) are connected into a whole through flanges respectively; a movable column inner pipe (38) of a movable column upper section (10) is inserted into a movable column outer pipe (40), and spiral slot slide shafts (26) of the outer column short joint (3) can slide in slide shaft guiding spiral slots (41); the upper outer column (2), the movable column upper section (10), a movable column short joint (11) and the movable column lower section (12) are connected into a whole; and spiral chute support bars (7) are connected onto the spiral chute support f