Defence Minister Mariusz Błaszczak said on Monday that the new facility was expected to be ready by the end of November.
The hospital will be the second of its kind in the Polish capital.
The country’s first temporary hospital for COVID-19 patients opened this month at the National Stadium in Warsaw, with a planned capacity of 1,200 beds.
Other temporary facilities are being built across the country in projects overseen by provincial governors, officials have said.
Poland on Monday reported 20,816 new coronavirus infections and 143 more deaths, bringing its total number of cases to 733,788 and fatalities to 10,491.
On Sunday, Poland confirmed 303 deaths and 21,854 new coronavirus infections nationwide, compared with a record 548 deaths and 25,571 fresh cases a day earlier.
(pk)
Source: PAP