FIELD: construction engineering; draw- in driving of underground pipelines. SUBSTANCE: reversible pneumodrill used in construction of controlled reversible pneumodrills for hole driving over desired trajectories, especially curvilinear ones, in grounds being consolidated has body, bumper, and valve. The latter has nozzle and bush. The latter is fixed in position on nozzle; at least one drilling is made on external surface of bush, in its lower part; drilling communicates through at least one radial opening with space between nozzle and bush; mentioned space communicates with compressed air source through check valve installed between mentioned space and changeover device when it admits compressed air. EFFECT: facilitated manufacture; enhanced reliability, service life, and operating stability of reversible pneumodrill. 2 dwg
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