A gathering and sampling device comprising: a cylindrically outer housing comprising a first outer housing end opening; an inner housing disposed within the cylindrically outer housing and comprising a first inner housing end opening; a cyclone chamber being formed between the cylindrically outer housing and the inner housing to generate a cyclone by forming a gas flow within the cyclone chamber; an outer chamber body, a portion of an end of the outer chamber body being the inner housing; and wherein the outer chamber body further comprises: a gas guiding chamber formed by an inner space of the outer chamber body, a sampling opening located at a center of the inner housing and configured to guide a gas sample suctioned by the gathering and sampling device through a center of the cyclone, into the gas guiding chamber, a gas charging chamber formed in a side wall of the outer chamber body around the gas guiding chamber, and a plurality of rotational-flow tubes connected with the gas charging chamber and configured to inject the gas from the gas charging chamber into the cyclone chamber so as to generate the cyclone by injecting the gas flow into the cyclone chamber, characterized in that the gathering and sampling device further comprises a plurality of gas injection orifices configured to inject a gas towards a substantial center of a circular region defined by an end face of the first outer housing end opening of the cylindrically outer housing, wherein the plurality of gas injection orifices is formed in the first inner housing end opening of the inner housing, and the plurality of gas injection orifices are in communication with the gas charging chamber, and the gathering and sampling device is configured such that a gas-flow rate from the plurality of gas injection orifices is smaller than a gas flow rate from the plurality of rotational flow tubes. a cylindrically outer housing comprising a first outer housing end opening; an inner housing disposed within the cylindrically outer housing and comprising a first inner housing end opening; a cyclone chamber being formed between the cylindrically outer housing and the inner housing to generate a cyclone by forming a gas flow within the cyclone chamber; an outer chamber body, a portion of an end of the outer chamber body being the inner housing; and wherein the outer chamber body further comprises: a gas guiding chamber formed by an inner space of the outer chamber body, a sampling opening located at a center of the inner housing and configured to guide a gas sample suctioned by the gathering and sampling device through a center of the cyclone, into the gas guiding chamber, a gas charging chamber formed in a side wall of the outer chamber body around the gas guiding chamber, and a plurality of rotational-flow tubes connected with the gas charging chamber and configured to inject the gas from the gas charging chamber into the cyclone chamber so as to generate the cyclone by injecting the gas flow into the cyclone chamber, a gas guiding chamber formed by an inner space of the outer chamber body, a sampling opening located at a center of the inner housing and configured to guide a gas sample suctioned by the gathering and sampling device through a center of the cyclone, into the gas guiding chamber, a gas charging chamber formed in a side wall of the outer chamber body around the gas guiding chamber, and a plurality of rotational-flow tubes connected with the gas charging chamber and configured to inject the gas from the gas charging chamber into the cyclone chamber so as to generate the cyclone by injecting the gas flow into the cyclone chamber, characterized in that the gathering and sampling device further comprises a plurality of gas injection orifices configured to inject a gas towards a substantial center of a circular region defined by an end face of the first outer housing end opening of the cylindrically outer housing, wherein the plurality of gas injection orifices is formed in the first inner housing end opening of the inner housing, and the plurality of gas injection orifices are in communication with the gas charging chamber, and the gathering and sampling device is configured such that a gas-flow rate from the plurality of gas injection orifices is smaller than a gas flow rate from the plurality of rotational flow tubes.