The invention discloses a manual simple columnar sediment collection device and method thereof, comprising a sampling pipe, a gas path control pipe, a first connecting rod and a second connecting rod,wherein the sampling pipe comprises a sampling cylinder, a reducer union, a first connecting pipe, a first external thread movable joint, a gas path steel pipe, a gas hose, a steel pipe plug, a sampling pipe internal thread plug, a sampling pipe smooth plug and an inflator; the gas path control pipe comprises a four-way pipe, a second connecting pipe, a third connecting pipe, a fourth connectingpipe, a fifth connecting pipe, a sixth connecting pipe, a seventh connecting pipe, a check valve, a first ball valve, a second external thread movable joint, a first internal thread movable joint, a gas path control pipe plug and a gas nozzle, wherein the first internal thread movable joint at the lower end of the gas path control pipe is connected with the first external thread movable joint at the upper end of the sampling pipe; and the first connecting rod and the second connecting rod are sequentially connected and fixed at the upper end of the gas path control pipe. The invention can greatly improve the sampling efficiency, improve the carrying convenience of the sampler, reduce the manufacturing cost of the sampler and reduce the sampling risk.