Intially seven men were caught in the accident, but two have been rescued.
An earth tremor has hit the Zofiowka coal mine in the town of Jastrzebie-Zdroj southern Poland, releasing high concentrations of methane gas, and trapping at least four miners below ground.
More than 200 rescue and service workers had been pressing to reach four additional workers missing at the mine in city of Jastrzebie-Zdroj, close to Poland's border with the Czech Republic.
A total of 250 miners were underground, with 11 people working in the quake zone.
Rescue teams have confirmed the death of a second Polish coal miner and are searching for three more trapped almost a kilometer underground after a quake, the chief executive of the mine owner said.
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By late afternoon two of the seven trapped miners were rescued, hurt but conscious.
He also visited the two rescued miners at the Jastrzebie-Zdroj hospital.
Ozon said that the quake had a magnitude of 3.5 to 4.0. President Andrzej Duda arrived at the mine on Sunday noon as the rescue operation was in full swing.
The state mining supervisor said the quake was a type that can occur in coal mines deposits are removed.
Coal in Poland: Coal mining remains a major industry in a country still heavily dependent on the dirty fuel source for electricity and heating.
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The Main Statistical Office says some 65.8 million metric tons (58.7 million tonnes) of coal were extracted previous year in Poland, some 4.8 million tons less than in 2016.
Ozon said the company believed the miner was 38 and had been working at JSW for ten years, but was waiting for the man's family to confirm his identity.
Still many of Poland's mines are risky, with methane gas that has led to a number of deadly explosions and cave-ins.
The head of the Jastrzebie Coal Company, Daniel Ozon, said Sunday that the killed miner had worked for the company for 10 years.
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