The present invention relates to a drum type threshing machine rotated by the rotation of the pedal of the tricycle assembly. The cheap and portable arrangement of thresher comprises a threshing drum (15) attached on tricycle assembly by brackets means (18) above the rear wheels (10) of the tricycle assembly wherein the drum pulley (16) at each end of the axle of threshing drum (15) is smaller than the pulley (9) on the rear axle of tricycle assembly； and the threshing drum (15) is rotated by the pedal (6) of tricycle assembly. The manpower is being transferred to the threshing drum (15) from first sprocket wheel to the second sprocket wheel of the tricycle assembly by a chain arrangement with at least one belt (13) mounted between first and/or second end of the drum pulley(s) (16) over the axle of the threshing drum (15) and the pulley (9) on the rear axle of tricycle assembly to rotate the threshing drum (15) at a speed of around 200 rpm. The transportation of the complete arrangement of thresher by detaching the belt (13) to move in any terrain by riding the tricycle assembly mounted attached with the threshing drum thereof.
