PROBLEM TO BE SOLVED: To stabilize seeding depth of a direct seeding machine by using a direct seeding machine provided with a traveling body having a traveling apparatus, and a direct seeding device furnished with a seed delivering part to deliver seeds from a seed tank, a seed conduit to guide the seeds delivered from the seed delivering part, and a seeding furrow opener to open a seeding furrow on a field, blasting air to surface soil of a seeding part before seeding and before forming a furrow with the seeding furrow opener and seeding at the seeding part after removing water from the surface soil.SOLUTION: Air supplied through an air channel (194) of the direct seeding machine is blown from the front side to the back side of the seeding furrow opener (164) against the surface soil of the furrow opened by the seeding furrow opener (164).
