Portable reserved material local temperature-reducing device

The utility model discloses a portable reserved material local temperature-reducing device. The device comprises a small reserved material cooler, a gas distributor, at least one fan, matched air intake pipes with corresponding quantity, and more than three gas-introducing pipes, wherein a group of interfaces are formed on the gas distributor; the small reserved material cooler, a fan air outlet and the gas-introducing pipes are connected with the interfaces of the gas distributor through pipelines respectively; a fan air inlet is directly connected with the air intake pipes; the gas-introducing pipes and the air intake pipes are hard pipes; and small holes are reserved on the lower parts of the gas-introducing pipes and the air intake pipes, and the hole diameter is limited under the condition that grains cannot leak. The device has a simple structure and a relatively small volume, can be assembled in a using place and then can be conveniently moved and used in different places or different bins in a grain s