Portable coffee brewing apparatus

A portable coffee brewing apparatus, comprising:

• a bottle body, wherein the bottle body is of a structure with openings at two ends;
• an upper lid;
• a bottom lid;
• wherein the upper lid and the bottom lid are in sealing connection with the two ends of the bottle body in a detachable manner, and a first container configured to contain water is formed after the connection;
• a second container configured to contain water is formed after one of the upper lid and the bottom lid is detached from the first container, and a third container configured to contain water is formed after the other one of the upper lid and the bottom lid is detached from the first container;
• a powder cartridge, wherein the powder cartridge is configured to store coffee powder, two ends of the powder cartridge are provided with filtering devices which are a first filtering device and a second filtering device, and the second filtering device has a permeability lower than that of the first filtering device;
• when the powder cartridge is placed in from an opening of the second container and taken out from an opening of the the third container, the powder cartridge is in sealing connection with peripheral sidewalls of the second container and the third container;
• and
• a pushing structure, wherein the pushing structure is configured to push the powder cartridge to move in the second container, and the second filtering device is arranged downstream of the first filtering device in the process of placing the powder cartridge into the second container.