Floating bacteria sampler with adjustable sampling flow

The utility model discloses a planktonic bacteria sampler with adjustable sampling flow. The planktonic bacteria sampler comprises a sampling head, a shell and a base, the shell is mounted on the base, and the sampling head is mounted at the top of the shell; the shell is provided with an air inlet limiting baffle, an air outlet flow equalizing baffle and a fan, the air inlet limiting baffle is arranged at the upper end of the shell, the air outlet flow equalizing baffle is arranged at the lower end of the shell, and the fan is arranged between the air inlet limiting baffle and the air outlet flow equalizing baffle; a plurality of supporting pieces are arranged on the air inlet limiting baffle and are used for placing culture dishes; the sampling head is provided with uniformly distributed air inlet holes, the air inlet limiting baffle plate is provided with an air inlet, and the air outlet flow equalizing baffle plate is provided with uniformly distributed exhaust holes; the utility model has the advantages