PURPOSE: To provide a device for drawing a line such that a rotating drum is divided into right and left rooms by a partition wall, powders for drawing a line such as coal dusts or the like are enclosed in each room, and a plurality of small holes for dropping the powders are arranged on a whole outer circumferential wall surfaces on the right and left sides of the partition wall, thereby enabling one line of two colors to be drawn at once.

CONSTITUTION: A wheel axle 25 is provided over both front ends of a frame 2 made of a pipe member and a wheel axle 26 is provided over both rear ends of the frame 2, respectively. A wheel 19 for movement is rotatably supported by the right and left ends of the rear side axle 26 and a rotary drum 3 is rotatably supported by the front side axle 25. The rotary drum 3 is constructed by coupling two cone members on the both sides of a cylindrical body and a partition wall 4 made of a metal plate is disposed inside the rotary drum, thereby dividing the drum into two rooms. Input ports with open/shut covers 9 and 10 from which powders for drawing a line such as coal dusts are put are provided on circumferential wall surfaces of the rooms 5 and 6 and ground rings 17 and 18 each having a V shape are formed by extending the peripheries of the mouth of the cone members on the outer peripheries of the outer circumferential wall surfaces which are on the right and left sides of the partition wall 4.