The purpose of the present invention is to provide a rotary pipe-type linear feeder which enables a stable metered feed by the rotation of a pipe provided with a linear inner cylinder and outer cylinder. In this rotary pipe-type linear feeder (1), a motor-driven pipe (3) is connected to a pipe connection hole (2a), formed at the bottom of a hopper (2) in which a particulate/chopped food ingredient is stored, the food ingredient is fed from the hopper (2) through the interior of the pipe (3) as the pipe (3) rotates, and the food ingredient is supplied to a production line. The pipe (3) is provided with a linear inner cylinder (3a) and a linear outer cylinder (3b) which has a shorter overall length than the inner cylinder (3a) is slidably inserted into the outer cylinder (3b) with a high degree of precision. The outer cylinder (3b) is affixted to a plurality of bearings (7, 7) and brackets (9, 10) supporting the bearings (7, 7), and the brackets (9, 10) and the hopper (2) are integrally mounted on a base plate (11). The bottom surface of the base plate (11) is provided with an angle adjustment means (12) that inclinably supports the base plate (11).
